TM 9-243
USING A COMBINATION SQUARE - Continued
Using as a protractor head to determine an angle:
1 Slide protractor head (1) on rule (2) and fasten by
tightening setscrew (3).
Loosen the protractor adjustment screws (4) so the
protractor may be pivoted about the rule. Angle
being measured is already marked.
3
Place the rule on the angle being measured and
pivot the protractor head against the edge. Tighten
adjustment screws.
4 Remove and read measured angle on protractor
scale.
Using as a combination square to determine depth:
1
Slide square head (1) on rule (2) and fasten by
tightening setscrew (3).
2
Loosen setscrew.
3
Set the flat surface of the square head (1) above the
hole and adjust the rule (2) until it hits the bottom.
13-7
