try square

American  

noun

1. a device for testing the squareness of carpentry work or the like, or for laying out right angles, consisting of a pair of straightedges fixed at right angles to one another.

---

try square British  

noun

1. a device for testing or laying out right angles, usually consisting of a metal blade fixed at right angles to a wooden handle

---

Etymology

Origin of try square

First recorded in 1875–80

Example Sentences

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.

From Woodwork Joints How they are Set Out, How Made and Where Used. by Fairham, William

Then plane the other two sides at right angles, so as to produce a square rod, which, at every part throughout its length, should fit the try square.

From Hand-Craft The Most Reliable Basis of Technical Education in Schools and Classes by Sutcliffe, John D.

With the try square repeat the lines of this sketch on both sides of each.

From Hand-Craft The Most Reliable Basis of Technical Education in Schools and Classes by Sutcliffe, John D.

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

From Hand-Craft The Most Reliable Basis of Technical Education in Schools and Classes by Sutcliffe, John D.

The wood is placed upon the bench, and the joint marked out by using a marking knife or penknife blade and the try square.

From Woodwork Joints How they are Set Out, How Made and Where Used. by Fairham, William