457C Improved Diemakers’ Square 52429

The Starrett 457 Improved Diemakers’ Square is a highly useful tool for tool and diemakers, especially for measuring die clearances. It is also very handy for patternmakers to check angles and drafts on patterns. The beam of this square is graduated to show the setting in degrees of the blades. Blades can be set for any angle up to 10°, either side of 0º and the angle is indicated by the line on the pointer. Complete, with Straight and Offset Blades.

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  • The beam is beveled adjacent to the blade so that the blade is readily visible when checking in holes, slots, etc.
  • Blades and beams are hardened and ground
  • Graduated blade, 32nds of an inch on one side, and 64ths on other. It is 5/32"wide over a length of 1-5/8" and cut away at one end to a width of 3/32"
  • The offset blade is 1/8" (3mm) wide and both sides of each edge are beveled to give visual line contact


  • Type: Improved Diemakers’ Square with angular adjustment
  • Blade Length (in): 1-5/8"
  • Graduations: 32nds - 64ths
  • Material: Steel


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    California Proposition 65 Warning

      WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov