JO-Plugs is one of the brands that make up a family of products manufactured by Spence Industries, Inc. The tapped hole location gages under JO-Plugs are designed to determine the basic profile and basic position of threaded holes. You may be pleased to know JO-Plug gages are inspected and threaded in accordance with ISO/IEC 17025:2005. This is a clear indication that JO-Plugs meet the general requirements for the competence of calibration and testing laboratories. At Willrich Precision Instrument, you can find the latest products under the JO-Plugs line.

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Popular Products from JO-Plugs

Willrich Precision is a trusted retailer of high quality JO-Plugs products. Some of the top JO-Plugs instruments that we carry include:

  • Solid Construction JO-Plug Tapped Hole Location Gages

Shop at Willrich Precision for JO-Plugs Products

Willrich Precision is one of the perfect places to start your search for quality location hole gages. Whether you need to acquire basic profile or basic position dimensions, you can be sure that you will benefit greatly from our unwavering commitment to our customers. We will make it extremely easy for you to buy quality products through our user-friendly eCommerce portal and ensure that your measuring needs are met within budget.

Our company has experienced great success from serving the gaging, inspection, and metrology industry since 1971. We practice a client-first approach as we are never here to make a quick profit. We are here to put our resources to work for you with fervor. Start shopping with us today, and don’t hesitate to email us at or call us at 866-945-5742 for further enquiries!

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