This is a new 4" premium engineer/machinist square manufactured by Igaging. It has true right angles for both inside and outside edges and is guaranteed to be square to within +/- 0.01 degrees. over the entire length of the blade. Base is 2.75" long and long arm is 4" tall. Thickness is .200:. This square features hardened carbon tool steel and is ground and lapped for straightness and parallism.

• Measuring & Layout Tools 4" premium solid engineer/machinist bevel square#0058/12

Measuring & Layout Tools 4" premium solid engineer/machinist bevel square#0058/12Squares