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Swanson SO107 Big 12 Speed Square

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Speed Squares that make any project simpler to construct whether you're building a house, tool shed, lawn furniture, deck or any woodworking project. Carpenters and handymen ask for it by name!

Standard Equipment:

  • S0107 Big 12 Speed Square
  • Layout Bar with Hardware
  • Blue Book of Instructions


  • 7 tools in one - framing square, try square, miter square, protractor, line scriber, saw guide, stair gage.
  • Layout bar adjusts square to fit out-o-square corners.
  • Can be positioned on a stringer using layout bar stop bolts.
  • Black gradations for easier reading.
  • Matte finish to prevent glare.
  • Heavy gauge aluminum alloy.

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