Top Tips To Read A Dial Bore Gage

A dial bore gage is an instrument that measures the inner diameter of small holes. Bore gages are critical when it comes to measuring parts that have small holes in them. Typically, these versatile instruments are used as part of a quality control process to ensure that bore sizes are standardized. The dial bore gage is usually calibrated in 0.001 inches and consists of a shaft with a dial indicator situated at the top. The instrument also has an actuating plunger and the readings that it gives are usually compared to standardized measurements for analysis.

How They Work

Dial bore gages have a contact needle that lies in the head of the dial gage. When the instrument is moved (such as when taking measurements), the needle moves and transfers data to the readout or dial. Dial bore gages also have an interchangeable end that helps to set the nominal size. Dial gage operators have to set the gage to its nominal value before commencing any measurements. Here then are some tips on how to read a dial bore gage when taking measurements of a bore or cylinder.

How to Take Accurate Measurements

When taking measurements, you start by placing the bore gage in the micrometer and rotate the dial till the pointer is aligned to the zero marking on the dial face. One then places the dial gauge in the hole or cylinder being measured. One must take special care to ensure that the anvils on the instruments touch the sides of the hole or cylinder. Once this is done, the instrument operator then rocks the gage back and forth ensuring that the anvils do not lose contact with the walls of the cylinder. When this is done, the pointer will swing counterclockwise or clockwise. After a while, the pointer will start to move in the opposite direction toward zero. The machinist then records the precise measurement when the pointer starts heading towards zero.

Calculating the Measurements

This is done by simply taking the measurement at the point when the needle started to reverse itself and subtracting (or adding) the measurement the instrument is calibrated to. For example, let us assume that the instrument was calibrated to 2 inches and the instrument needle changed direction at 0.007 clockwise. The measurement of the bore in question would thus be 2.007. This is because when the needle moves clockwise, you add the two numbers. Alternatively, if it had moved anti-clockwise, we would have subtracted 0.007 from 2 inches to give us 1.993.

Advantages of Dial Bore Gages

Dial bore gages are popular with quality control operators because they are highly portable and easy to use. They also have very few moving parts and thus far less prone to breaking down than most other precision instruments. Dial bore gages also do not require sophisticated knowledge of instruments and therefore can be handled by line workers on the shop floor without much prior training.

For the best in precision instruments, get in touch with Willrich Precision. We have over 45 years of experience in delivering gaging and metrology type products to customers all over the United States.

Product Spotlight: Starrett MVR Manual Video Measuring Machine

Starrett video measuring machines allow for accurate and quick 3D measurements of small parts. These parts are typically inspected during quality control processes in manufacturing plants. In some cases, these types of measurements are taken offline to reduce environmental variables. Today, professionals can find two types of video measurement systems: automatic and manual. It is important to note that video measuring machines do not directly measure the parts but instead measure various images of a part. This machine is designed to develop a precise reproduction of the part via state-of-art optics and lighting systems

When a part is measured by a manual video measuring machine, it is moved on a manually operated workstage. The Z-axis zoom lens, however, can be motorized should the operator find it more convenient to do so. The chosen metrology software then automatically detects the part’s edges and guides the user to move the stage accordingly. No part of the video measuring system should move independently and that’s why a steel or granite base is needed to maintain overall equipment stability.

Willrich Precision is an authorized dealer of Starrett precision measurement instruments. If you are looking to get a Starrett MVR Manual Video Measuring Machine please contact us to arrange as demonstration.

About Starrett

Laroy S. Starrett founded the L.S. Starrett Company. Since their inception in 1880, the company has been manufacturing precision tools, gages, measuring instruments, and saw blades for a wide range of consumer, professional, and industrial markets across the globe. Today, there are over 5,000 different types of products to choose from. Starrett is recognized for their unrivaled standards for fine precision tools for over 130 years. This has allowed the company to be known as the World’s Greatest Toolmakers.

Features of the Starrett MVR Manual Video Measuring Machine

Here’s a quick look at some notable features of StarrettMVR Manual Video Measuring achine:

  • Comes with a granite base
  • Ring light LED surface illumination
  • Collimated LED sub-stage illumination
  • Features a color digital video camera
  • Video edge detection (VED) capabilities
  • Field-of-view (FOV) measurements (can be integrated with stage motion)
  • Compatible with MetLogix M3 metrology software
  • Motorized Z-axis positioning with variable speed controls
  • Manual X-Y positioning via hand heels
  • X and Y accuracy of 3.5µm + 5L/1000
  • Z accuracy of 2.5µm + 5L/1000
  • Requires at least a Windows 7 Professional operating system to enable network connectivity

Get Starrett MVR Manual Video Measuring Machines from Willrich Precision!

Willrich Precision offers Starrett MVR manual video measuring machines at the most competitive rates. Our company has been in business for more than 45 years and provides top-notch products in the gaging, inspection and metrology industries. We are also ISO:9001:2008 Registered and can provide professional calibration and repair services. Enjoy complete peace of mind knowing that our stellar measurement products and gages can cater to the diverse inspection needs of automotive companies, the military, aerospace companies, and much more.

To know more about our Starrett MVR Manual Video Measuring Machines and the benefits that they provide, do not hesitate to contact us today.

Understanding The Practicality Of Hardness Tests In Materials Production Processes

You may have heard of hardness tests in quality control processes. Hardness tests can tell quality control officers a lot about a product. It offers insights into the flexibility, strength as well as the durability of a product. Hardness tests are performed on all types of products including raw materials and finished products. Hardness testing is easy to perform and is usually non-destructive. The test does not require major alteration to the product and advancements in technology mean that modern instruments give highly accurate readings.

How Hardness Testing Has Changed

In previous years, scratch tests were conducted to determine the hardness of a part. The testing was based on an object that had increasing hardness from one point to another. Testing was done by having the part being tested scratch various points of the bar. The level at which the part could produce a scratch on the object determined its hardness. As industries progressed, quality control officers began to use diamonds and even steel balls to determine how hard an object was. Regardless of which method, these approaches were slow and were not suited for the high-pressure demands of modern industries. For this reason, more refined instruments were developed to measure the hardness of a product.

Modern Methods of Hardness Testing

There are a variety of hardness testing approaches today. Some of these include the Rockwell Method as well as the Knoop approach. Rockwell works best with metals and alloys and is favored for the quick results that it produces. On the other hand, the Knoop approach works best for thin materials and coatings. Some hardness measuring instruments can give results very quickly and are highly portable. Modern hardness instruments leave an indentation that is so tiny that it is almost unnoticeable or does not affect the functionality of the product. For instruments that leave a much larger indentation, the indentation mark can always be sanded out so that it is not noticeable at all.

How Hardness Tests are Done

Various tests use different approaches to measure hardness. For example, the Rockwell hardness test process relies on making a small indent on the part being measured by applying a relatively small load on the indenter. This helps to establish the zero-datum position. Once this is done, a bigger indentation is made using a larger load. The difference between the first indentation (depth) and the second helps to establish the required reading. Typically, the process makes use of a diamond cone for testing metals and tungsten is used to test softer materials.

Importance of Hardness Testing

Tests done on the hardness of a material helps to determine the structural integrity of a product. This, in turn, helps manufacturers know whether the product will perform as expected in the market. We can thus say that hardness tests help consumers to use products safely and for long by helping eliminate those that are structurally unsound.

For the best in precision instruments, get in touch with Willrich Precision. We have over 45 years of experience in delivering hardness testers to customers all over the United States.

In The Limelight: Ra Measurements

Ra is a unit of measurement that is used to express the average roughness of a surface finish. Ra is especially useful because it shows the average deviation that a surface has in comparison to a mean line. However, Ra works great for general applications but faces some limitations when it comes to very specific measurements.

It also might be inadequate for machinists and quality control experts who deal with sensitive equipment. This is because any slight deviation on the surface finish can affect the performance of a part in a significant way.

Understanding How Ra Works

One of the things a machinist must understand is the relationship between the average roughness and the surface finish in general. Surfaces with varying profiles can still have a similar Ra value but the different profiles mean that these parts work differently.

For example, if a part has scratches on its surface, there is a risk that is might fracture prematurely. This calls upon machinist to ensure that they consider the surface features relative to the functionality of the part.

A More Efficient Approach

Sometimes, machinists and quality control officers recommend very tight Ra parameters in order to try and guard against scratches and peaks. This leads to a lot of wastage and is not a very efficient way of dealing with such issues.

Engineers who understand the relationship between Ra values and the surface finishes know that it is easier to clear off the peaks rather than try to use high-tolerance Ra specifications. This approach allows them to achieve the same results but in a far more economical and competitive way.

While this may sound abstract, the ability to do this makes all the difference when it comes to competitive bidding. This is because the former is able to present more competitive bids while achieving the same exact quality specifications.

Getting the Right Average Roughness

When you are machining a part, it is critical to remember that different machining processes produce different kinds of tool patterns. A good example is the roughness that comes from grinding. This is generally of a shorter wavelength as compared to turning. When a part surface undergoes milling, there are even longer wavelength patterns. Sing point boring generally produces the longest wavelength patterns.

Keep in mind that the wavelength we are talking about is the spacing between individual toolmarks and not how wavy the surface of the part is. When taking the Ra values of a surface, care must be taken to ensure that the measurement is not affected by the waviness. This is done by making sure that the cut off length is short enough. At the same time, it must not be too short otherwise only a part of the tool mark is measured. Ideally, use a cutoff length that can include five complete sets of toolmarks.

Need An Excellent Mobile Roughness Tester? Try MarSurf PS 10!

With many manufacturing processes, there is always an emphasis on the quality of a product or part surface. For some products or parts, the surface finish determines how well the part functions. For example, too much roughness on a surface might weaken a part by making it more likely to crack and fail. This is especially true for parts that are subject to contact and thus friction.

Measuring Surface Roughness

The need for accurate measurements when it comes to surface roughness means that that quality control must have the right tools for the job. Not only must these products be very accurate but they must also be able to give quick results. This is because in a production setting, delays in the production line can mean loss of revenue for the organization. Sometimes the parts being measures are too heavy so they can’t be moved to the quality control room. In such cases, it becomes critical to be able to have the measurement instrument on the production floor. This reduces the time spent checking parts and thus saves the business money.

Introducing the MarSurf PS 10

The MarSurf PS 10 mobile roughness tester is one of the best in this category. The MarSurf PS 10 features state-of-the-art features such as a smartphone display that allows for easy use. The roughness tester also has internal memory for data storage but also the capacity to connect to a computer for the transfer of data. Its rechargeable data source allows for around 500 measurements and which increases its mobility. Its small size makes it very portable and very handy in a factory environment.

Other Features of the MarSurf PS 10

            •           Features a clear and adjustable display

            •           Data can be stored as TXT, CSV, X3P or PDF

            •           PDF documents can be created in the instrument

            •           Can undertake 1200 and above measurements between recharge

            •           Features a detachable drive unite

            •           Features the same number of functionalities as laboratory equipment.

            •           Has a favorites function that allows you quick access to commonly used functions

            •           Easy to use thanks to the automatic cutoff selection feature

Why Hardness Testing Is Essential

The hardness of a material is its inherent property that allows it to withstand abrasion, bending, scratching, cutting or deformation. If your day to day work involves materials manufacturing, you are most likely aware of the importance of a hardness test in allowing you to evaluate the products received from external suppliers and also, the production process of internally manufactured products.

Baseline measurements have to be defined and set in place in order to make sure that your products meet the required quality specifications in terms of strength. However, if you are new to the field, you might be unaware that the hardness of any material is not an intrinsic property but rather, the value obtained from a hardness test stems from a specific measurement sequence. Read on to find out more about hardness testing and how it can be performed!

Types Of Hardness Testing

For many materials in the 21st century, a hardness test comprises of using a device that impacts the material with a defined amount of force over a specific amount of time before measuring the depth of the groove left behind. The commonly used hardness tests that measures the relationship between hardness and the depth of the indentation can be classified into the Rockwell, Brinell and Vickers hardness test.

Rockwell Hardness Test

Rockwell hardness tests is one of the most commonly used hardness tests in the market due to its fast speed and high accuracy in determining the hardness of numerous materials such as metals, plastics and allows. When conducting this test, a hardened steel ball indenter or a diamond cone would be pushed into the material with a test force of 10kgf. Upon attaining equilibrium, more force would be used in order to cause a greater indentation depth. Once equilibrium is reached again, the force is removed, and the permanent depth of the indentation made would be used to determine the Rockwell hardness number of the material.

Additional Benefits Of Hardness Testing

By conducting a hardness test, the results obtained can be used to predict and determine the extent whereby the tested material can perform under various conditions. For example, by measuring the hardness at various temperature and humidity conditions can simulate and allow you to know if the hardness of the material would be impacted by storing it in a humid warehouse. If the hardness measurements remained constant, it indicates that the material can be stored normally. Otherwise, special precautions must then be taken to ensure proper storage of the material. Another instance would be testing the material’s hardness under prolonged exposure to various chemicals. This would allow you to determine the material’s resistance to chemicals and if special caution needs to be taken to ensure the functionality of the material is not affected by a chemical exposure.


All in all, a hardness test is a crucial test that you must adopt in ensuring that your product meets the stated quality specifications.

At Willrich Precision Instrument, we provide a large selection of hardness testers that would definitely meet the rigorous needs of your business! Browse through our exciting inventory and shop for quality surface roughness testers today. If you need assistance with any product purchase, call us at 866-945-5742 or email us at today.

Understanding Bore Gages

A bore gage is an instrument that is frequently used to measure the internal of a hole. It is also known by many names such as bore mics, hole tests, holtests, internal micrometers or cylinder tests depending on your geographical region. It operates on the basis whereby parts known as the anvils expanding outward in order to determine its diameter when inserted into the hole. Read on to find out more about the characteristics and uses of bore gages.

Types Of Bore Gages

There are numerous types of bore gages in the market, with the more common types being bore gages with two or three anvils respectively. Bore gages with two anvils are cheaper and are calibrated with gauge blocks whereas those with three anvils are known as internal micrometers and are calibrated with setting rings. Both types can make use of either a digital or dial scale to display the measured diameter of the hole. Apart from the common bore gages, there are also more specific types specializing in various measurements, such as the dial bore gages, small hole gages and telescopic bore gages.

Sizes Of Bore Gages

Depending on the diameter of the hole that you are measuring, you would require different types of bore gauges that have various measurement sizes. If you are looking for a bore gage that can measure a wide range of sizes, an adjustable bore gage would be the equipment that is suited for your needs! However, this type of gage suffers from a lower tolerance in the measured diameter. If a high degree of accuracy is demanded in the final product, plug gages, which comes in fixed sizes would be the equipment that you have been looking for. Plug gages can be customized accordingly to your requirements, making them available in both small and large sizes.

Uses Of Bore Gages

With the high level of precision obtainable in a bore gage, there are many applications where it can be used such as the measurement of pipes, holes and cylinders, which are commonplace in the manufacturing, automotive and equipment calibration industries. Inspectors and maintenance staffs utilize bore gages to inspect the dimensions inside injection moldings to ensure that its quality are up to the desired standards, or in extruder barrels to monitor wear and tear over an extended period of time to find out when preventive maintenance can be carried out. Mechanics and machinists also make use of these equipment to detect the extent of wear and tear in cylinder heads and also to accurately measure holes in an engine block to ensure that the pistons fit tightly to prevent any gas leakages.


With the numerous potential applications of bore gages and its ease of customizability in terms of types and sizes, it serves as a handy tool that can greatly assist you in the measurement of a hole’s internal diameter.
At Willrich Precision Instrument, we provide a wide range of bore gages that would definitely meet the rigorous needs of your business! Browse through our exciting inventory and shop for quality bore gages today. If you need assistance with any product purchase, call us at 866-945-5742 or email us at today.

A Short Course On Measuring Pitch Diameters

Do you know that bolts, tapes, dies and other helically threaded components are characterized by various parameters? These parameters include depth, angle, pitch, major and minor diameters, whereby the pitch diameter holds the most significance amongst these parameters. Read on to find out more about the importance and the process of measuring pitch diameters!

What is a Pitch Diameter?

To many of us, the effective diameter, also known as the pitch diameter, refers to the diameter of the cylinder as it cuts the midpoint of both the major and minor diameters known as the pitch line. The pitch diameter is an important property that governs the compatibility between two threaded parts, such as nuts and bolts and if they can be successfully mated with each other. Moreover, they are also used as a crucial reference for other relevant thread measurements.

Measurement of Pitch Diameter

Due to the large susceptibility of pitch diameters to measurement errors, unique measuring equipment must be used in order to obtain an accurate reading. Although there exist many types of techniques to measure pitch diameter, there exist three most commonly utilized methods, namely the three-wire measurement method, the optical comparators and specialized micrometer screw gages which ensures the accuracy of your reading!

Three-Wire Method

The three-wire method makes use of a traditional, flat anvil micrometer screw gage to measure pitch diameter. Three separate wires of pre-measured diameter would be placed within the pitch of the threads before the gage of the wire is chosen. This enables the wires to stay in contact with the pitch line while simultaneously extending beyond the outside diameter of the thread. With another micrometer screw gage, the distance between the wires on the opposite sides are measured and used as inputs in prescribed formulas to derive the pitch diameter.

Optical Comparators

Optical comparators make use of the fundamental basis of optics and light to determine the pitch diameter. A magnified silhouette of the threaded object is projected on a screen and a specialized software would be used for image analysis and to obtain the pitch diameter. Through the use of optical comparators, it would result in a high degree of accuracy in pitch diameter measurements. However, a downside of it would be its expensive cost!

Specialized Micrometer Screw Gages

A commonly used instrument would be a form of micrometer screw gage known as a thread mic or a pitch mic. It was designed for the purpose of measuring the pitch diameters of cutting threading tools. To make use of this instrument, the ratchet of the micrometer is turned continuously until the spindle comes into contact with the thread flanks. The pitch diameter can then be read off from the micrometer scales. This method provides an efficient and accurate, but yet a low-cost way of measuring the pitch diameter!

At Willrich Precision Instrument, we provide a large selection of thread gages that would definitely meet the rigorous needs of your business! Browse through our exciting inventory and shop for quality thread gages today. If you need assistance with any product purchase, call us at 866-945-5742 or email us at today.

Product Spotlight: Fowler Trimos V7 Electronic 2D Height Gage

Height gages have
been in use for many decades to measure heights of objects. Height gage can
also be used to measure a variety of other parameters. These include diameters,
radii, and more. Over the years, height gages have evolved and today, we have
digital height gages where a lot of the processes are automated. This makes it
easier for machinists to use height gages.

One such height gage is the Fowler Trimos V7 Electronic 2D Height Gage. This is an easy-to-use height gage that comes with a modern touch screen. It comes with a lateral insert holder that makes it great for use in a workshop. In order to improve clarity, the touch screen is very simplified so that the machine operator will not get distracted by clutter. In continuance with the drive to simplify things, the number of buttons is limited to only what is absolutely necessary.

The advantage of
this is that operating the machine becomes very simple so one can easily
perform complex operations simultaneously. The other advantage is that not a
lot of training is required to get new workers to operate the machine. This
saves a lot of time and costs, ensuring that productivity is always at its

About Fowler High Precision

Fowler High
Precision Company is widely recognized as one of the leading manufacturers of precision
equipment in the world. The company was founded in 1946 and since then, it has
grown to where it is today. Fowler High Precision has managed to remain dynamic
thanks to strategic partnerships with other companies such as Wyler and Trimos
among others. This way, Fowler has ensured that they remain at the peak of the
technology curve. This is reflected in the state-of-the-art products that the
company supplies such as the Fowler Trimos V7 Electronic 2D Height Gage.

Features of Fowler Trimos V7 Electronic 2D Height Gage

Here’s a quick look
at some notable features of Fowler Trimos V7 Electronic
2D Height Gage:

  • 2D programming,
  • Large range of
  • Measuring ranges 400
    to 1800mm
  • Manual or motorized
  • All possible
    adjustments without tools
  • Interfaces RS232 and
  • Simple and
    easy-to-use graphic interface
  • Electronically
    adjustable measuring force

 Get Fowler
Trimos V7 Electronic 2D Height Gage from Willrich Precision!

Willrich Precision
is your go-to supplier of top-quality precision instruments such as the Fowler
Trimos V7 Electronic 2D Height Gage. We have been serving numerous customers
for over 50 years and we have established a reputation as a trusted business
partner. Our unique business model focuses on providing solutions to our
clients. This is why we go out of our way to offer advice and assistance to
clients who are not sure what instruments work best for their needs.

When you come to Willrich Precision, you can have peace of mind that you are getting top quality precision instruments at very competitive prices.

To know more about
our Fowler Trimos V7 Electronic 2D Height Gages and the benefits they provide,
do not hesitate to contact us today.

Top Tips To Facilitate Rockwell Hardness Tests

Hardness is defined as the measure of resistance that a material has when force is applied to it. Others may refer to hardness as the ability of a substance to resist scratching, cutting or abrasions. There is a direct relationship between the level of hardness of an object and the level of its resistance. The greater the hardness, the greater the resistance. Hardness is largely determined by a substance’s microstructure. Hardness matters because it gives us an indication of how the material will stand up against pressure. This has implications on how the material can be used and what kind of pressure it can withstand. For this reason, measuring hardness is a routine procedure in most quality control processes. Here are some of the ways of facilitating Rockwell hardness tests.

Check Indenter

Before carrying out a Rockwell hardness test, it is critical to ensure that there is no chipped or cracked diamonds on the indenter. This is because any of such anomalies are likely to lead to errors in the readings. Experts recommend checking the indenter every week with a magnifying device (such as a Jeweler’s eye loop). However, it might be hard to tell if the indenter is damaged. For this reason, if you notice consistent erroneous readings, this might be another clue that there is a problem with the indenter.

Verify Hardness Readings

Before performing a test, experts recommend
that you test the hardness of a test block. This is a block with a hardness
that is already known and thus the idea is to check if the reading from the
tool is consistent with the known hardness. It is usually standard to do at
least three tests in order to establish a consistent reading. It is also
standard to discard the first reading after an indenter or an anvil change.

Keep the Rockwell Hardness Tester Clean

Debris, dirt and other contaminants can affect
readings. It is important to remove and clean the indenter and anvil before you
start testing. It is also critical to do this at every break between the shifts
so that all parts of the tester stay clean throughout the day.


When testing objects that are rough or that
have textured surfaces, it is important to be aware that these kinds of
surfaces can affect the readings obtained from the tester. To help overcome
these kinds of problems, ensure that you lightly sand the surface to reduce the

Watch out For Movement

If you get any movement of the part while
doing a test, you should discard the reading and perform another test. You
should also avoid including these readings in your final average. This is
because the movement of the part can affect the accuracy of the test.

Watch out for the Edge

When you take readings very close to the edge,
it might cause problems with the reading and might even damage the indenter.
Ensure that all readings are made at least 2.5 times the diameter of the
indenter from the edge. The key to note is that if the metal buckles outward,
then you have positioned the indenter too close to the edge.

Which Indicating Bore Gage Should You Get?

Which Indicating Bore Gage Should You Get?

If one selects the wrong type of bore gage, it
could deliver inaccurate data, low throughput and end up as an unnecessary
expense. If you are looking to get indicating bore gages, here’s what you need
to know:

Understanding the Basics of Indicating Bore

The two basic types of indicating bore
are fixed-size gages with plug-style housing and adjustable-capacity
gages with interchangeable extensions or contacts. In most cases, indicating
plug gages offer higher repeatability and can measure closer tolerances than
their adjustable counterparts. Now that you have a better understanding of
indicating bore gages, below are several factors to consider before choosing
the ideal bore gage for your precision measurement needs.


If you need to measure large inner diameters (ID), adjustable bore gages are currently recognized as the economical option. Stock adjustable gages and masters are typically available in capacities of up to 24 inches. Most plug-type gages, on the other hand, are over 4.5 inches and are considered “specials.” This means that they cost slightly more than adjustable gages.


Today, many modern shops still utilize adjustable
bore gages. In addition to low production runs, adjustable bore gages come in
handy when technicians need to measure with medium to broad tolerances. Additionally,
the application might have many different bore sizes to measure as well. The
range of these gages is typically up to three times greater than that of plug
gages, i.e. 0.010 inch vs. ≤ 0.006 inch. That’s why they are practical to use
with broader tolerances.

Because adjustable gages can measure a range
of hole sizes, some shops only require just three units, with capacities of:

  • 0.500 to 1.00 inch
  • 1 to 2 inches
  • 2 to 8 inches

Indicating plug gages, on the other hand, require
separate size plugs to measure each hole size.


One of the biggest advantages of fixed-size
plug gages is that they can eliminate “rocking” to center the gage in
the bore. Self-centering plug gages virtually eliminate operators’ influences
and require minimal training. Rocking adjustable gages is considered a refined
skill that needs to be performed conscientiously. Inadequately trained
operators who are rushed or tired are likely to produce inaccurate results.

Adjustable gages, on the other hand, are more
subject to intentional operator influences than the aforementioned gage. This
is called “close-enough syndrome.” If you want to eliminate
“rocking” and speed up the measurement process, choose plug gages.
They perform well in production runs where tolerances are tight, and volumes
are high. Additionally, they have larger bearing surfaces, are more resistant
to wear, and offer greater repeatability. It is recommended that one uses plug
gages with electronic data collection systems.

Willrich Precision is the leading supplier of precision instruments including bore gages. We have over four decades of experience supplying high-quality precision measurement instruments to a variety of industries. You can count on our professional staff to offer advice and suggestions when you are buying equipment from us. This way, you get the correct products for your applications and save money. Willrich Precision is also a family-owned business and we put our customers at the center of everything we do.

Understanding The Height Measurement Of Sharp Edges And Needles

Understanding The Height Measurement Of Sharp Edges And Needles

Measuring sharp edges and needles is critical when it comes to ensuring that tools and medical instruments meet the required height specifications. Medical equipment such as needles need to be of very specific dimensions. This is because if they are too long or too short, they may cause injury or might not deliver the right dosage as needed. For this reason, quality control personnel have devised a myriad of ways to conduct height measurement of sharp edges and needles.

Measuring Sharp Edges

When manufacturing instruments and tools with
sharp edges, it is important to verify their height to ensure that they can
perform as required. When doing this, quality control personnel use a variety
of tools principal among them, digital gage probe. These probes are designed to
take measurements of delicate surfaces without causing any damage to the
pointed end or the sharp edge of a tool. They are also designed to be extremely
accurate, up to a 0.05µm.

Advantages of Digital Gage Probes

Modern digital gage probes are particularly
suited for this kind of work because they offer precise and repeatable results.
They also come with very low tip forces ensuring that they deliver sub-micron
accuracy. They are also designed to be part of a quality control process, so
they integrate very well with other equipment and are easy to use. Digital gage
probes also can withstand varying environmental conditions meaning that they
can be used in all kinds of factories and machining shops.

Digital probe gage can also be easily used to
measure the height of needles made with all kinds of materials. This includes
tungsten and more. They also come in all kinds of shapes and sizes ensuring
that they can easily be applied to a wide range of applications.

Benefits of Verifying Height of Sharp Edges
and Needles

The height of medical instruments matters
greatly when it comes to how they are applied. For example, the effectiveness
of insulin injections can be affected by the height of the needle used. If a
patient with diabetes injects himself or herself with a needle that is too
long, the insulin is deposited intramuscularly. This in turn results to faster
than normal absorption and decreased longevity of the insulin. The height of
sharp edges also has a significant impact on the efficacy of the tool in
question. The depth of the cut is largely determined by the height of the edge.
This has major implications when one thinks of delicate surgeries such as heart
and brain surgeries.

Willrich Precision is the leading supplier of precision instruments including digital gage probes. We have over four decades of experience supplying high-quality instruments to a variety of industries including the medical industry. You can count on our professional staff to offer advice and suggestions when you are buying equipment from us. This way, you benefit from our experience in this field. Willrich Precision is also a family-owned business and we put our customers at the center of everything we do.

What Do Height Gages Have To Offer In 2019?

What Do Height Gages Have To Offer In 2019?

Height gages have been in use for years and are critical for determining the height of various products. These gages generally consist of a heavy base and a caliper. Measurements are taken along a vertical scale and are either read off the scale or from an LCD screen for modern instruments. Height gages can also be used to measure other parameters such as diameter. Height gages have come a long way and there have been many changes to them. Here is what you can expect from height gages in 2019.

Mechanical and Electronic Gages

When you are looking for a new height gage,
you have a choice of taking a mechanical or electronic one. Each one of them
comes with certain advantages and disadvantages. For example, dial height gages
are very portable and thus can be used in machining shops where the machine
operator has to move around. Digital gages, on the other hand, are easy to use
and measurements can be taken rapidly. This is a real plus in environments
where speed is valued. Digital gages also allow for the setting of a floating
zero value which makes readings more accurate.

More Features

In 2019, you can expect that your height gage
will come with a host of features that make it easier to use. The additional
features also increase the functionalities that you can apply your height gage
to. These improvements are not just in the features but in the build of the gages
themselves. For example, the modern height gage comes with a high precision
resolution that ensures that most errors arising from the build of the gage are
canceled. This has been done without increasing the weight of the gages. In fact,
height gages have become lighter than before as they are built with lightweight

Digital Gages

As digital technology has improved, height gage operators have seen increased capabilities when it comes to what they can do with their height gages. Modern height gages can automatically set zero point as we have seen but can do much more than that. Data from modern height gages can be easily downloaded from the device and on to a printer or a computer. This means that operators can analyze the data, as well as share it widely through email and other modern communication channels.

Modern height gages also come in a variety of
shapes and sizes meaning that they can be used for a wide range of tasks and

1D and 2D Measurements

Height gages with 1D measurement capabilities
can perform the following functions:

  • Loads the probe and shifts the probe position
  • Saves the probe
  • Inputs the probe diameter
  • Measures the probe diameter
  • Sets the probe type
  • Measures the difference between maximum height
    and minimum height of an upward or downward facing surface
  • Performs angle calculations
  • Measures the width and center of inner and
    outer diameters
  • Measures the width and center position between
    two elements
  • Measures the minimum and maximum heights of
    downward and upward-facing surfaces
  • Measures the diameter and center of a shaft or
  • Measures the height of an upward-facing and
    downward-facing surface

Height gages with 2D measurement capabilities
typically come with the following functions:

  • Tolerance judgment result output
  • Tolerance judgment function
  • Coordinate distance calculation
  • Element recall
  • Coordinate save
  • Coordinate system rotation
  • 2D origin setting
  • X/Y axis setting
  • 2D origin translation
  • Coordinate recall
  • Polar coordinate recall
  • 2D distance calculation
  • 2 elements intersection-angle calculation
  • 3 elements intersection-angle calculation
  • Pitch-circle calculation
  • Tolerance/nominal value setting
  • Warning functions

Willrich Precision Instruments is your
one-stop-shop for all your precision equipment needs. We have been serving a
host of industries for the last 45 years. This gives us remarkable insight into
the needs of any business when it comes to precision instruments. You can count
on us for high-quality instruments backed by a superb after-sales service. We
always put our customers at the center of all that we do so you are sure that
we have got your back.

Understanding the Extended Capabilities of Modern Height Gages

Understanding the Extended Capabilities of Modern Height Gages

A height gage comes in handy when doing a quick measurement
check in the quality room. Besides that, a height gage can help you make
accurate checks on the shop floor and this makes it one of the most valuable
tools you can have. A modern height gage is especially useful as it performs
almost as good as a coordinate
measuring machine
(CMM) with near similar capabilities and accuracies.
Having a modern height gage that has multipurpose capabilities means you can
save the CMM for use when you need more critical and detailed checks and in the
meantime use the modern height gage for simpler and less sensitive tasks.

How Does a Height
Gage Work?

To read the height measurement using a height gage, a slider with a
measuring stylus attached to it is moved while staying relative to a measuring
scale placed on a beam along one vertical axis. This axis is often perpendicular
to a reference plane placed on the instrument base allowing you to take your

Types of Height Gages

There are three main types of height gages namely:

  • Vernier
  • Dial
  • Digital

All the above height gages are useful tools that come in
handy during quality control. However, many advancements and adjustments are
being made to the digital height gage to make it more applicable to perform
more complicated tasks. Discussed below are some of the capabilities that have
resulted due to the advancements made to modern height gages:

Higher Accuracy,
Resolution and 2D Measurement

Higher resolution is made possible by new encoders that have
been installed in modern gages. A strong construction also increases the
probability for higher accuracies. It is important to remember that increased
gage stability leads to increased weight hence difficulty in sliding the gage
as a result of increased friction. If you have a print that needs a 2D
measurement, a digital height gage with a 2D measurement feature is the tool
for you. By rotating the 2D measurement feature 90 degrees and measuring the
same points, you can get the diagonal measurements with ease.

A height gage with calculation abilities makes it easy to
get the measurement between centers. This calculation power allows the height
gage to memorize the lowest and highest points within a single sweep. You can
also interchange the ball probe with smaller ones to enable the gage to reach
narrow slots. Measuring the bottom edge of a groove or slot was near impossible
until a microprocessor combined with a ball probe to cover for the ball
diameter was brought into the market. This combination makes measuring the
distance between two centers easier and quicker. 

Other Measurements

Most new height gages have a horizontal offset or special
probes that make it possible for the gage to measure angles during quality
checks. Other new height gage models can input the output from some linear
displacement devices like indicators. This input enables the displays to show squareness,
as well as straightness.

Data and Output

New height gages offer ways to make easy programs that take
an operator through pre-measured points in order to make sure the same
positions are measured all the time, not overlooking a single measurement. 

There is no arguing that modern height gages are the new
wave and with so many capabilities, owning one for your business will only
prove beneficial to you.

Product Spotlight: Starrett 254 Master Vernier Height Gage

Product Spotlight: Starrett 254 Master Vernier Height Gage

Precision measurements are a common element in many
industrial applications. Technicians need to deal with a wide array of values,
e.g., height, length, breath, and depth, on a daily basis. It is important that
all workshops have the right instrument to accurately measure and record these
values. Chances are you might have heard of Vernier height gages. This is a
special type of Vernier instrument that is used to measure the heights of
different engineering objects with high precision and accuracy. Additionally,
these gages typically comprise the following components: a base, a main scale,
a measuring jaw, a fine adjustment screw and a fine adjustment clamp. The sizes
of Vernier height gages range from 150 mm to 500 mm on average. If you are
looking for the Starrett 254 master Vernier height gage, learn more about it in
this product spotlight!

About Starrett

The L.S. Starrett Company was founded in 1880 by Laroy
Sunderland Starrett. As a mechanically inclined individual, he patented a
number of inventions, including a butter working machine, a washing machine and
a meat chopper. Starrett engages in the manufacture of consumer, professional
and industrial measuring and cutting tools.

In 1868, Starrett was appointed the superintendent and
general agent of the Athol Machine Co. of Athol. This allowed Laroy Sunderland
Starrett to manufacture his inventions, as well as taking out approximately 100
patents. Among his inventions were a variety of hand tools that were useful in
the building trades. The combination square was one of these tools and it
consisted of a steel rule with a sliding head.

Today, Starrett’s diverse product range includes tape
measures, custom engineered granite solutions, laser measuring equipment and electronic
gages among others. The organization continues to operate through the following
segments: International Operations and North American Operations.

Features of the Starrett
254 Master Vernier Height Gage

Here’s a quick look at some notable features of the Starrett
254 Master Vernier Height Gage

  • Vertical bars that provide balance and stability
  • Hardened master bars (available on models up to
    24 and 600mm)
  • Remote fine adjustment features for sizes 36
    (900mm) and larger
  • Quick-adjust release features that allow for
    fast positioning
  • Black lines and figures against satin chrome
    finishes for increased visibility
  • 50-division Vernier scales
  • Flush fitting to eliminate parallax
  • Scriber and base allow for direct reading from
  • Special master bar design that eliminates
  • … and more!

Get Starrett 254
Master Vernier Height Gages from Willrich Precision!

The Starrett 254 is one of the most durable and accurate
Vernier height gages on the market. In addition to the product’s increase
strength and stability, it has more range than other height gages. If you are
looking to get a new Starrett 254 master Vernier height gage, look no further
than Willrich Precision. Our firm ahs been in business for over 40 years and
provide stellar solutions for customers who specialize in metrology, gaging and
inspection. Enjoy peace of mind knowing that we are also ISO:9001:2008
Registered and are well-versed in repair and calibration services.

To know more about our Starrett 254 master Vernier height
gages and the benefits they provide, do not hesitate to contact us today.

Measuring Styrofoam End Caps With Air Gages

Measuring Styrofoam End Caps With Air Gages

When you buy a stereo system, it is hard to imagine that air gages are used in the process of packaging your new device. Most people regard air gages as precision instruments being used in automotive factories and other heavy industries. Air gages, however, are pretty versatile and you will find them in use in a variety of places including the manufacture of Styrofoam end caps. Here’s how air gages are used to verify the quality of these end caps.

When you buy a stereo system, it is hard to imagine that air gages are used in the process of packaging your new device. Most people regard air gages as precision instruments being used in automotive factories and other heavy industries. Air gages, however, are pretty versatile and you will find them in use in a variety of places including the manufacture of Styrofoam end caps. Here’s how air gages are used to verify the quality of these end caps.

What is Styrofoam?

Styrofoam is also known as polystyrene is a
polymer that is found in a variety of products. It is typically used as a form
of packaging as the material is light and strong. This allows manufacturers to
ship delicate products safely without increasing their costs of shipping.
Depending on what is being shipped, manufacturers can easily vary the characteristics
of the polymers. This is why some of these materials are rock hard while others
are soft and crumbly.

When manufacturers are doing this, they are
often checking on whether the polymer will hold the weight of the product. At a
microscopic level, this processing, known as bonding, ensures that there is no
air between the beads that make up the polymer. 
The less air there is, the tighter the beads bond together and the
stronger the polymer becomes.

Role of Air Gaging

This is where air gaging comes into play. By
running pressurized air through the beads, the manufacturers can figure out how
much space there is between the beads. This, in turn, helps them to determine
how strong the polymer is. By applying pressurized air, one can then observe
the back pressure on the air gage. If there are lots of gaps between the beads,
the backpressure will be reduced as the air is flowing through freely. If the
bonding is tight, then the back pressure is higher as there are fewer gaps for
the air to pass through.

Over time, these technicians know the
reference standards that tell them how tightly bound a polymer is. Backpressure
readings from the gages are then compared to these references and inferences
can then easily be drawn from the data.

Verifying the Flatness of Styrofoam Packaging

Machine operators can also know how the mold
matches up with the surface. If a part of the product is flat, then the molding
surface should also be flat as well where the product will lie. The path of the
airflow helps them to determine how flat a surface is. Here, they use an
open-air probe with a flat surface. If the surface is not completely flat,
there will be gaps between the probe and the surface. This, in turn, will lead
to air escaping and will be reflected in the ensuring backpressure.

If you are looking for high-quality air gages, Willrich Precision Instruments has exactly what you need. We have been supplying a variety of industries with precision instruments for the last four and a half decades. We offer excellent after-sales support and you can always count on our superb customer service.