Homdum Carpenter try square with 6inch steel ruler scale heavy duty 90 degree woodworking tool for engineer metal works size 6” Tri-Square  (Pack of 1)

A try square is a special purpose square in wood- and metalworking used to mark or measure material. The name ‘try square’ comes from the concept of ‘trying a surface’ to check a surface’s straightness or correspondence to an adjacent surface and ‘square’ a 90°, or right, angle.Try squares generally consist of two parts. The ‘blade’ is the longer portion, usually made of metal. The ‘handle’ or ‘stock’ is made of cast iron.