Johnson 1959-0700 7" Magnetic Johnny Square Professional Easy-Read Aluminum Rafter Square

Description

This 7" Johnny Square® is a versatile tool for builders and welders. Its thick edge is useful as a saw guide - it can be used directly with the saw against the square for cross cuts or angled cuts using the etched protractor scale. It's magnetic edge also makes it ideal for welders since it attaches to ferrous metal. It can be used for measuring or marking angles and setting and checking square before or after welds are complete.