General Tools 251 Screw Pitch Gage (4 to 84)

General’s Screw Pitch Gages are finely crafted measuring devices used for gauging both internal and external thread pitches on tapped holes, screws and nuts. Each gage can accurately measure American National, U.S. Standard 60 Degree and “V” thread types. This set of 51 Screw Pitches includes all sizes from 4 to 84, including 11-1/2, as well as 27 pipe thread sizes. When not in use, the Gages can be rotated into the tool’s housing to protect their edges.

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