A sliding bevel is an instrument that is used for both laying out and transferring angles. These tools are pivotal for many different kinds of construction jobs, especially for those in which the ideal 90° angles are not possible. With the sliding bevel, one is able to conform his/her projects to less than ideal angle measurements.
The sliding T-bevel can be used to either originate an angle or trace and transfer a current angle. Listed are the steps necessary in order to use the sliding T bevel.
To make a new angle:
Loosen the wing nut adjustment so that the blade is free to rotate.
Swing the blade until the desired angle between the handle of the bevel and the blade side is made. This may be best achieved by placing a protractor on the inside of the bevel itself (so that the protractor is resting on the wing nut) and measuring out the desired angle.
Lock the T bevel into place by tightening the wing nut.
Lay the T bevel on your working surface and draw the angle by tracing along the inside of the T bevel blade and handle.
To transfer an existing angle:
Loosen the wing nut adjustment so that the blade is free to rotate
Lay the T bevel against the surface of the angle cut to be copied.
Rotate the inside edge of the blade to the existing angle until it matches the angle being transferred.
Tighten the wing nut until it locks the blade and handle in position.
Place the T bevel on the working surface and transfer the angle.
Draw out the angle by tracing along the bevel on the inside edge of the blade and handle.