X.8140 GO PLUG GAGE;VERMONT

Use these single tolerance, class X plug gages as reference standards (master gages) to calibrate comparators, micrometers, snap gages and other measuring equipment. Faster set-up times - eliminate the need of wringing blocks together and calibrate by using the exact diameter you need. More accurate - use a master gage which is the same diameter as the work being measured and you eliminate lead error in your measuring equipment. Lapped to 2 microinch finish or better. Round within .00002". Eliminate geometry error which is caused when calibrating with flat gage blocks. Single tolerance: -.00000" / +.00004" NIST traceable. Tool steel: Rc 60 - 62 (cold stabilized) Length: 2"