Johnson Rafter Squares RAS-1 7 Johnny Square Aluminum Rafter Angle Square w/Manual

• Solid aluminum body with CNC machined edges for greater accuracy and durability
• Permanent graduations and numbers are easy-to-read
• Thick edge is useful as a saw guide
• Continuous scribing notches - ideal for ripping at 3-1/2" and 5-1/2"
• Low-glare, protective powder coated finish
• Complete instruction manual included with rafter tables