PRECISION MEASURING AND GAGING - OD1642 - LESSON 1/TASK 2
TOOLMAKER'S BUTTON AND ITS APPLICATION.
(b) Uses. To use the telescoping gage loosen the knurled locking
nut (2) at the end of the handle (3).
Compress the plungers, place them
into the hole to be measured, release the turning handle screw (2), slightly
tilt the telescoping gage, and rock it back and forth slightly, while at the