Johnson Level Johnny Square 7 In. Aluminum Professional Rafter Square

Solid 7′ aluminum body with CNC (Computer Numerical Control) machined edges for greater accuracy and durability. Permanent graduations and numbers are easy-to-read. Thick edge is useful as a saw guide. 1/8′ continuous scribing notches – ideal for ripping at 3-1/2′ and 5-1/2′. Low-glare, protective powder-coated finish.