13A Inch Reading Double Square 50109

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. 4" Satin Chrome Finish Graduated Blade.

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  • With Graduated Blade Only
  • 4R Graduation - Quick Reading 8ths, 16ths, 32nds, 64ths


  • Type: Double Square with Hardened Blade
  • Blade Length (in): 4"
  • Graduations: 32nds - 64ths
  • Material: Steel
  • Includes: With Graduated Blade Only


    Member of Kit
    Item #DescriptionPart No.QtyInformation
    1•STOCK ASSEMBLY01406-11
    2••LOCK BOLT COMPLETE #13PT990210
    3•••BOLT, LOCK #11-4PT131361
    4•••NUT, .231-1824548-01
    5•••SPRING, .263X.313X.250X.025 X201085-1/21


    2D Dimensional Drawing (PDF)



    27.49 kb
    Catalog 33 - Section 11 - Squares

    Invented by our founder, the combination square was our first product and today, our brand is considered to be the best available. This section offers a range of high quality solid squares, tri-squares specialty products and accessories that is especially broad and deep.

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