M & J Tooling LLC

M & J Tooling LLC

3 3/16 11 1/2 NS THREAD PLUG GAGE 3.1875 NO GO ONLY P.D. = 3.1425 INSPECTION

M & J Tooling LLC

SHOP MADE 3 3/4 16 2B THREAD PLUG GAUGE 3.75 P.D. = 3.7124 QUALITY INSPECTION

M & J Tooling LLC

4 3/16 12 UNJF 3B THREAD PLUG GAGE 4.1875 GO NO GO P.D.'S = 4.1334 & 4.1398

M & J Tooling LLC

4 1/4 12 NS 2 THREAD PLUG GAGE 4.250 GO ONLY P.D. = 4.1961 REVERSIBLE QUALITY