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Speed Square 12"

Speed Square 12"

Regular price $19.90
Regular price Sale price $19.90
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Make layouts faster, cleaner, and more accurate with the Sawinery 12″ Speed Square. At 70% larger than standard 7″ speed squares, it’s the ideal layout tool for bigger boards, panels, and sheet goods where a smaller square just won’t cut it. The larger size keeps the reference edge flat and stable, giving you precise lines every time.

Crafted from solid precision-machined aluminum, this square is built to handle rough jobsite or shop use without losing accuracy. The high contrast labeling provides clearmeasuring for woodworking and construction. Mark perpendicular measurements,strike a line parallel with the edge or mark angles, even layout trusses forroofing, all with the same tool.

  • Extra Large Size

  • High-Contrast Markings

  • Solid Aluminum Build

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  • Larger Coverage Area

    Full 12″ length is 70% larger than 7" speed squares

  • Check Corners Instantly

    Quickly verify squareness and vertical alignment on large assemblies.

  • Easy-Read Measurements

    High-contrast markings stay visible and accurate while you work.

  • Parallel Lines

    Mark lines from 1” to 10”, parallel to the edge

  • Full 0°–90° Angles

    Provides layout measurements from 0 to 90 degrees

  • Built to Last

    Solid aluminum retains precision even under rough, repeated use.

  • Bigger for Better Accuracy

    At 12", this Speed Square gives you far more reach than a standard 7" square — ideal for larger layouts.

  • Make Lines at Any Angle

    Mark accurate angles quickly and cleanly for layouts, cuts, or guides.

  • Square Up Large Projects

    Check and confirm that big panels or frames are perfectly square with ease.

  • Large Layouts

    Handle bigger projects with ease — the 12” size lets you mark long, straight lines across plywood and sheet goods with accuracy.

  • Rafter Data at Your Fingertips

    Built-in rafter conversion tables give you quick, reliable angle and cut information right on the square. No need to grab a separate chart.

  • Verify Vertical Alignment

    Ensure parts are standing perfectly upright and perpendicular to your work surface.