IRWIN Tools Adjustable Drywall Square, Aluminum, 48-Inch (1794478)
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<b>[Product Information]</b><br>
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<li>The square is adjustable to any angle, but also locks at 90 degrees. Thermally bonded graduations with an anodized finish.</li>
<li>Aluminum body is durable, rust-proof, and lightweight.</li>
<li>This square is used for measuring and marking sheets of drywall, plywood and other building materials.</li>
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