Swanson Big 12 Speed 12 In. Aluminum Rafter Square Larson of torque that allows the

of torque that allows the user to get more work done by completing a wide range of fastening

varnished wood or vinyl clad window frames with the double-face tape provided

self-aligning screw holes make installation easy and hassle-free

2 T-hinges

Use any time of year to save money by saving energy

Swanson Big 12 Speed 12 In. Aluminum Rafter Square Larson of torque that allows theCast aluminum alloy. Measures 12" x 12" and 17" across the diagonal, which is marked off in degrees from 0 deg. (degree) to 90 deg.. Features scribe bar, notched every 1 4", to lay out parallel lines. Lay put bar adjusted out to fit out of square corner. 2 adjustable stop pins can be set for proper run and proper rise. Includes Blue Book of Rafter Length and Roof Construction.