Page 157 - CITS - Fitter Trade Pactical - Volume - 2

FITTER - CITS

4 For laying out a line, move the blade until it extends the required distance from the head. This measurement
is read on the scale of the blade. Lock the blade and the square head using locking nut and position the head
firmly against the reference surface. Scribe the required line.

5 For measuring length hold the head firmly against the reference surface. Move the blade until it exactly splits
the measured point. Read the dimension on the blade of the square head.

Protractor Head

Using protractor head for measuring and marking an angle
1 Loosen the revolving turret locking nut to allow the turret (disc) to be rotated when a slight force is applied.
2 Press the flat face of the protractor head against the reference surface.
3 Position the protractor head so that the blade and turret may be moved to the desired angle and mark off the
angle.

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CITS : CG & M - Fitter - Exercise 43