adjustable square

adjustable square

[ə′jəs·tə·bəl ′skwer] (engineering) A try square with an arm that is at right angles to the ruler; the position of the arm can be changed to form an L or a T. Also known as double square.

adjustable square, double square

adjustable square A try square the arm of which is at right angles to the handle; the position of the arm may be moved so as to form an L or a T.