Empire 3990 12" Magnum Rafter Angle Square

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Item Number:ELM3990
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Empire 3990 12" Magnum Rafter Angle Square

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The 3990 includes:

  • 1x Empire 3990 12" Magnum Rafter Square


  • Manufactured from a single piece of solid extruded aluminum for incredible durability
  • Wide enough to mark and cut boards up to 12" wide
  • Conversion tables are stamped into the surface for easy readings and calculations
  • Thick frame design makes it ideal for using as a saw guide
  • Graduated notches allow you to easily "pull" layout lines
  • Come complete with instruction manual that includes rafter tables

The most essential and trusted tool in any framer or carpenter's belt has to be the rafter square. Originally invented in 1925, the rafter square has changed little over the years, and professionals the world over continue to depend on them for quick and accurate measurements and cuts. The Empire Level 3990 12" Magnum Rafter Square is the classic rafter square, but with a little bit of extra size for those larger marking and cutting jobs. The larger length makes it perfect for marking and cutting boards up to 12" wide and the stamped conversion tables make it easy to get the measurements you need. Professionals will appreciate the fact that the 3990 is nearly indestructible; its single piece extruded aluminum design will assure accuracy and straightness for years to come. The Empire Level 3990 12" Magnum Rafter Square included a user manual with a complete set of rafter tables.

Tech Specs:

  • Brand: Empire
  • Model: 3990
  • MPN: 3990
  • UPC: 015812039902
  • Type: Angle Square
  • Product Depth (in.): 0.875
  • Product Width (in.): 17
  • Product Height (in.): 8.625
  • Package Qty.: 1

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