TB 9-5210-209-24
Figure 1. Micrometer depth gage.
NOTE
Measuring rods are matched to micrometers and are not
interchangeable with rods of other micrometers.
9. Micrometer Depth Gage Calibration
a. Performance Check
(1) Set up micrometer depth gage with 0 to 1 inch rod, triangular base and 0.100
inch gage block.
(2) Wring 0.100 inch gage block to triangular base.
(3) While holding the base of TI firmly on gage block, place rod of TI over hole in the
gage block and turn thimble of TI until rod makes contact with triangular base, or for three
clicks of ratchet.
(4) The TI should indicate 0.100 0.0003 inch (with vernier) or 0.100 0.001 inch
(without vernier).