Editing Try square (section)

== Use ==
[[File:Illustration on using a try square.png|thumb|Using a try square to mark lines perpendicular to the edge.]]
[[File:Image from page 147 of "Teacher's handbook of Slöjd" (1900).jpg|thumb|Using a try square to check if the full length of a board is square.]]
The stock is usually held against the edge of the workpiece and either side of the tongue is then used as a [[Straightedge|straight edge]] for making a mark, or as a reference to check the accuracy of an angle.<ref name=":3" /><ref name=":4" />

When checking if an angle is square, the woodworker will test the workpiece in multiple places or will run the square along the length of the workpiece. The woodworker might hold the workpiece up towards a light to help see any gaps between the workpiece and the square. Another method is to try sliding [[feeler gauge]]s between the square and the workpiece.

For making a mark a woodworker might use a pencil, a pen or, for greater accuracy, a [[marking knife]] or blade.