try square

Repeat these lines on the edges and top side, using the try square.

Gauging.—After squaring all the shoulder lines round the timber with the knife and try square, the mortise gauge should be set so as to strike the two gauge lines marked G, Figs.

The T-Square is another modification of the try square, its principal use being for draughting purposes.

Transfer these lines down the edges by the aid of the try square.

Potts, Milwaukee, Wis.—This invention relates to a new and useful improvement in a tool for mechanics' use and consists in combining with a try square, a spirit level and a surface gage.