TM 9-243
TYPES AND USES - Continued
SLIDING T-BEVEL
BEVEL PROTRACTOR
The sliding T-bevel is made up of a slotted blade (1) and
a solid stock (2). The blade is adjustable so it can be
set to measure any angle. The T-bevel is used for
testing bevels and laying out angles.
The bevel protractor is made up of an adjustable blade
(1) and a graduated dial (2) which contains a vernier
scale. The bevel protractor is used to establish an angle
and determine its relationship to other surfaces. The
acute angle attachment (3) is used for measuring acute
angles accurately.
USING A CARPENTER'S SQUARE TO MARK A SQUARE LINE
1 To mark a square line, place the blade or tongue (1)
of the square against the side of the material
with the square tilted slightly so the blade or
tongue of the square extends across the work.
2 Mark a line across the work using a pencil or marking
crayon.
USING A CARPENTER'S SQUARE TO LAY OUT STEPS
1 The following example shows proper square position
when marking cut lines for a series of steps 9" x
12."
2 Continue the process until desired number of steps
has been laid out.
13-4
