Meyer Steel plug Pin Gage set Makers Minus .011/.250

Meyer Steel plug Pin Gage set Makers Minus .011 / .250

**Units has been verified and are completed. Has slight cosmetic damages from regular use. See photos for further details.

Meyer Pin Gage set .0115 - .2505 Class Z Plus Plug & Pin Gage Set C105 (LOC779) Gage Set Number: M15P plus. Gage Size: .0615 to .2505. Number of Pieces: 190 Brand.measuring the pins with a micrometer. I'm working on an old, pistol from the 1980s that has been heavily used. Sear and hammer pin sizes are .109" and .156" respectively. The sear pin is within the original G.I. tolerance of .110"-.002". Checking the sear pin hole in the frame with gauge pins reveals a frame hole size of .111", also within the original G.I. spec (.110" dia. +.002"). The hammer pin hole will accept a .159" pin and almost take a .160" pin, so it's at the high end of the tolerance (.1575"+ .0015"). That's about .005" of movement by the original pins before we have touched the sear and hammer engagement surfaces with a stone.

Meyer's Class Z Gage Pin Sets are now made to a closer tolerance (0.0025mm), are more accurate, and are a better solution for your needs. The old Class ZZ had a size deviation of 0.005mm. The new Class Z has a size deviation of 0.0025mm.

20.38mm to 22.04mm Class Z Gage Pin Set
84 Pieces in .02mm increments
51mm Overall Length
Sets are traceable to NIST
Boxes and Gages are both marked
Each gage has an 8 microfinish or better
PLUS or MINUS Pin Gages

PLUS (Go) tolerance = +0.002mm / -0.000mm
MINUS (No Go) tolerance = +0.000mm / -0.002mm