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Starrett Combination Squares:  Tips & Tricks

Starrett combination squares consist of a photo-engraved, hardened and tempered steel rule (or blade) and an adjustable square head. Starrett combination square heads are made of cast iron or forged and hardened steel and are not to be confused with the cheap imitation plastic or die cast heads on the market. The value of Starrett tools is that they are accurate and will last.

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The combination square can be used as a complete substitute for:

  • An entire set of common solid tri-squares
  • 45 degree miter
  • Depth gage
  • Height gage
  • Marking gage or scribing gage
  • Level
  • Plumb
  • Precision rule

The result? Better accuracy and greater efficiency.

Invented by our founder over 135 years ago, the Combination Square was our first product. Today, the Starrett brand is considered the best available and we offer a range of high quality solid squares, tri-squares, specialty products and accessories.


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