A sliding T bevel, also known as a bevel gauge or false square is an adjustable gauge for setting and transferring angles. Different from the

square In Euclidean geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles (90-degree angles, π/2 radian angles, or right angles). It can also be defined as a rectangle with two equal-length a ...

, which is fixed and can only set a 90° angle, the sliding T bevel can set any angle and transfer it on another piece. The bevel gauge is composed of two elements connected with a thumbscrew or wing nut, which allows the blade to pivot and be locked at any

angle In Euclidean geometry, an angle is the figure formed by two rays, called the '' sides'' of the angle, sharing a common endpoint, called the '' vertex'' of the angle. Angles formed by two rays lie in the plane that contains the rays. Angles ...

. The handle is usually made of wood or plastic and the blade of metal. The bevel can be used to duplicate an existing angle, or set to a desired angle by using it with any number of other measuring tools (such as a

protractor A protractor is a measuring instrument, typically made of transparent plastic or glass, for measuring angles. Some protractors are simple half-discs or full circles. More advanced protractors, such as the bevel protractor, have one or two sw ...

, or framing square).

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*Reader's Digest "Book of Skills & Tools" Angle Dimensional instruments Woodworking measuring instruments {{Woodworking-stub

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