USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 3/TASK 1
USING DRILL AND WIRE GAGES.
USING CENTER GAGE.
(2) Screw Pitch Gages. If the pitch of a thread is not known, it can
be determined by comparing it with the standards on the various screw pitch
gages. Place a blade of a gage over the threads, and check to see whether
it meshes; if not, successively check each blade of the gage against