TM 55-2840-254-23
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1-120 DETERMINE DEPTH OF DAMAGE FROM CHAFING, DENTING, SCRATCHING,
GOUGING, OR WEAR (Continued)
3. Determine depth of damage on internal surfaces
(7) using inside caliper as follows:
a. Remove projecting material (8) by blending.
Use hand-file.
b. Determine distance between surfaces (7) at
damage. Use inside caliper (9).
c. Measure set thickness on inside caliper (9).
Use outside micrometer caliper. Record
as Dimension C.
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