Double Square, 3-1/2x9/16 In, 4R Grad, 2 Pc

  • Mfr # 13A

  • Zoro # G3739321


product price:  $121.99
/ea
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Key Features

Material
Cast Iron
Outside Dimensions (In.)
3-1/2 x 9/16
Characteristics
4R Graduation: 8ths, 16ths, 32nds, 64ths
Includes
Graduated Blade
Number of Pieces
2
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Specifications

Product Information

MFR #
13A
Zoro #
G3739321
UPC #
049659501094
Country of Origin
United States

Dimensions

Outside Dimensions (In.)
3-1/2 x 9/16
Head Length
3 in
Head Width
9/16 in
Blade Width
3/4 in
Blade Length
4 in
Blade Thickness
0.08 in

Details

Item
Double Square
Material
Cast Iron
Characteristics
4R Graduation: 8ths, 16ths, 32nds, 64ths
Includes
Graduated Blade
Number of Pieces
2
Head Type
Square
Graduation Color
Black
Blade Coating
Chrome
Graduation Units
Inches
Squareness Tolerance
+/- 0.002 in
Head Coating
Enamel
Blade Finish
Satin
Head Vial Included
Yes
Graduation Mark Style
Etched
Features
With Graduated Blade Only
Straightness Tolerance
0.001 in/ft
Graduation Marks - Front
1/64 in
Accuracy
+/- .0025 in
Blade Material
Steel
Graduation Scale
4R
System of Measurement
SAE

Description

The STARRETT 13A is a 2-piece double square with a 4 in graduated steel blade and a square head. It is used for precision measuring and layout work, with an adjustable sliding blade for different measurement and marking positions. The head faces are ground square, and the blade has a satin chrome finish with inch graduations.

Key features of the STARRETT 13A:

  • Item Type: Double square with graduated blade only.
  • Blade Size: 4 in long, 3/4 in wide, and 0.08 in thick.
  • Blade Material and Finish: Steel blade with satin chrome finish.
  • Graduation Style: 4R graduation with quick-reading 8ths, 16ths, 32nds, and 64ths.
  • Graduation Details: Inch units with black etched marks; front graduation marked to 1/64 in.
  • Head Construction: Square head made of cast iron with enamel coating.
  • Head Size: 3 in head length, 9/16 in head width, outside dimensions 3-1/2 x 9/16 in.
  • Head Vial: Includes vial in the head.
  • Accuracy: +/- 0.0025 in.
  • Squareness Tolerance: +/- 0.002 in.
  • Straightness Tolerance: 0.001 in/ft.
  • Measurement System: SAE.

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