13MA Millimeter Reading Double Square 56278

Starrett 13 squares are very popular with machinists, toolmakers, and patternmakers. The sliding blades are adjustable making it practical for a wide variety of uses. The faces of the head are ground square. 100mm Satin Chrome Finish Graduated Blade.

Contact Starrett


  • With Graduated Blade Only
  • mm Grads Both Edges One Side; mm and 1/2mm Reverse Side
  • Double Square with hardened blade
  • 100mm


  • Type: Double Square with hardened blade
  • Blade Length (mm): 100mm
  • Graduations: mm - 1/2mm
  • Material: Steel
  • Includes: With Graduated Blade Only


    2D Dimensional Drawing (PDF)



    87.71 kb