USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 3/TASK 1
the thread until it meshes. The pitch can be read off the correct blade.
The blades are made pointed so that they can be inserted in small nuts to
check inside as well as outside threads. Refer to figure 208 for use of the
screw pitch gages.
FIGURE 208.
USING SCREW PITCH GAGES.
m. Use of Small Hole and Telescoping Gages.
(1) These gages are used when measurements cannot be taken with a
standard micrometer, or for which there are no plug gages available.
Telescoping gages are particularly adaptable for rough bored work and odd
sizes and shapes of holes. Compress plungers and lock by turning the handle
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