The Big 12 Speed Square is a 12 in. version of the Swanson Speed Square. This innovative tool combines 5 tools into 1: 1. Try Square, 2. Miter square, 3. Saw guide, 4. Line scriber, & 5. protractor. The Big 12 speed square is die-cast for durability and accuracy. Made of heavy-gauge aerospace Aluminum alloy, it is built to last. This model includes the Swanson Blue Book for roof and stairway layout and also features markings for using the Swanson one-number method of rafter layout. The Swanson Speed Square is our most popular product and remains the most trusted square of its kind. Look for the Diamond cutout for genuine Swanson products. Note: this item does not include the layout bar or corresponding hardware used with the S0107 Big 12 speed square.
The Swanson Big 12 Speed Square is made from heavy-gauge aluminum alloy with plain gradations and a matte finish to prevent glare. Individually packaged with a 60-page Swanson Blue Book of Instructions, this versatile 12 Speed Square is a framing square, try square, miter square, protractor, and saw guide, in one easy-to-use tool. This product also comes with a 1-year limited manufacturer’s warranty.
From the Manufacturer
Big 12 Speed Square with Blue Book Instructions. Framing Square, Try Square, Miter Square, Protractor, Saw Guide
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Heavy gauge aluminum with matte finish to prevent glare
1/4 in. and 1/2 in. spaced notches to facilitate scribing lines
Includes 60-page Swanson blue book of instructions
Great for deck framing and stairway building!