USING A SLIDING T-BEVEL SQUARE - Continued
Mark with a pencil or marking crayon. Make sure the
square does not move while marking.
USING A COMBINATION SQUARE
Using as a center head to find the diameter of a cylinder:
Slide center head (1) on rule (2) and fasten by
tightening setscrew (3).
Mark the diameter on the cylinder using a pencil or
marking crayon by drawing a straight line along the
inside edge (4). Make sure the square does not slip
Put the center head flush against the cylinder.