Page 156 - CITS - Fitter Trade Pactical - Volume - 2
P. 156
FITTER - CITS
Using square head
1 For checking angles, rest the head on its square face to check a 90° angle and on its angled face to check 45°.
Use the head to check for level
2 For measuring depth, loosen the locking nut, rest the square face flat on the reference surface and push the
rule into the depth. Tighten the locking nut, remove the rule and read the depth.
3 For checking horizontal surface, rest the square face of the head on the surface with blade removed and
reinstall the blade and check vertical surfaces by holding the blade against the vertical member to see that it
is plumb.
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CITS : CG & M - Fitter - Exercise 43
