Mueller Gage 1550 Adjustable Diameter and Groove Gage Frictionless

High accuracy gage checks inside & outside diameters, groove diameters & related dimensions.
Gage rests on face of part for fast & dependable 2 point measurement directly across diameter.
Checks inside & outside diameters.
Large 1" to 7 3/4" diameter range.
Adjustable gaging depth from 1/16" to 3 ". Deeper depth range available.
Linear ball bushing movement for precise repeatability. 2 ground shafts with 8 precision ball bushings.
Hardened steel rest surface
Full 1" travel (retraction) for checking deep grooves.
Complete range of standard contact points available.
Special 2 point & 3 point contacts made for custom applications.
Fast & positive ID-OD reverse. No loose parts.
Use with mechanical or electronic indicator.
Easily set with gage blocks, ring gage or qualified part.