Swanson Big 12 Speed 12 In. Aluminum Rafter Square
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Product overview
Cast 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.
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Specifications
| Material | Aluminum |
| Graduations | 1/4 In. |
| Square Size | 12 In. |
| Brand | Swanson |
| UPC | 00038987001079 |
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