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Tool Steel Rectangle Bar O1

Tool Steel Rectangle Bar O1

O1 tool steel rectangle bar is an oil hardening, general purpose tool steel valued for its fine grain structure, excellent machinability, and predictable heat treat response. While it does not match D2 or A2 for wear resistance, O1 offers superior dimensional control and lower distortion during hardening.


Applications: Punches, gauges, bushings, shear knives, precision tooling.


Available Finish: Ground Oversized | Precision Ground


9/64" x 2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11826

9/64" x 2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11826

Dimensions

  • Thickness: 0.1406"
  • Width: 2"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

5/64" x 1" Tool Steel Rectangle Bar O1 Precision Ground Part # 11690

5/64" x 1" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11690

Dimensions

  • Thickness: 0.0781"
  • Width: 1"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

7/16" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12162

7/16" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12162

Dimensions

  • Thickness: 0.4375"
  • Width: 2.5"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/2" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12212

1/2" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12212

Dimensions

  • Thickness: 0.5"
  • Width: 2.5"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1 1/4" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12397

1 1/4" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12397

Dimensions

  • Thickness: 1.25"
  • Width: 1.5"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/8" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 11810

1/8" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11810

Dimensions

  • Thickness: 0.125"
  • Width: 3"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/4" x 1 3/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 12297

3/4" x 1 3/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12297

Dimensions

  • Thickness: 0.75"
  • Width: 1.75"
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Material Meets These Standard(s): SAE-J-437,ASTM-A681

1/8" x 5/8" Tool Steel Rectangle Bar O1 Precision Ground Part # 11804

1/8" x 5/8" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11804

Dimensions

  • Thickness: 0.125"
  • Width: 0.625"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

5/16" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 12077

5/16" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12077

Dimensions

  • Thickness: 0.3125"
  • Width: 0.75"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/64" x 4" Tool Steel Rectangle Bar O1 Precision Ground Part # 19273

1/64" x 4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 19273

Dimensions

  • Thickness: 0.0156"
  • Width: 4"
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Material Meets These Standard(s): SAE-J-437,ASTM-A681

1/8" x 2 1/2" Tool Steel Rectangle Bar O1 Ground Oversize Part # 13836

1/8" x 2 1/2" Tool Steel Rectangle Bar O1 Ground Oversize -
Part #: 13836

Dimensions

  • Thickness: 0.125"
  • Width: 2.5"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/4" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12001

1/4" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12001

Dimensions

  • Thickness: 0.25"
  • Width: 0.5"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1 1/4" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 12400

1 1/4" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12400

Dimensions

  • Thickness: 1.25"
  • Width: 3"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/64" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 19272

1/64" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 19272

Dimensions

  • Thickness: 0.0156"
  • Width: 3"
View more product details Click for more details
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Material Meets These Standard(s): SAE-J-437,ASTM-A681

1/64" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 19271

1/64" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 19271

Dimensions

  • Thickness: 0.0156"
  • Width: 2.5"
View more product details Click for more details
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Material Meets These Standard(s): SAE-J-437,ASTM-A681

1/64" x 2" Tool Steel Rectangle Bar O1 Precision Ground Part # 19270

1/64" x 2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 19270

Dimensions

  • Thickness: 0.0156"
  • Width: 2"
View more product details Click for more details
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Material Meets These Standard(s): SAE-J-437,ASTM-A681

1/64" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 19269

1/64" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 19269

Dimensions

  • Thickness: 0.0156"
  • Width: 1.5"
View more product details Click for more details
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Material Meets These Standard(s): SAE-J-437,ASTM-A681

1/64" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 19268

1/64" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 19268

Dimensions

  • Thickness: 0.0156"
  • Width: 1.25"
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Material Meets These Standard(s): SAE-J-437,ASTM-A681

1/64" x 1" Tool Steel Rectangle Bar O1 Precision Ground Part # 19267

1/64" x 1" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 19267

1/32" x 6" Tool Steel Rectangle Bar O1 Precision Ground Part # 11629

1/32" x 6" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11629

Dimensions

  • Thickness: 0.0313"
  • Width: 6"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11628

1/32" x 4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11628

Dimensions

  • Thickness: 0.0313"
  • Width: 4"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 11627

1/32" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11627

Dimensions

  • Thickness: 0.0313"
  • Width: 3"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11626

1/32" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11626

Dimensions

  • Thickness: 0.0313"
  • Width: 2.5"
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom
Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11625

1/32" x 2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11625

Dimensions

  • Thickness: 0.0313"
  • Width: 2"
View more product details Click for more details
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11624

1/32" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11624

Dimensions

  • Thickness: 0.0313"
  • Width: 1.5"
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom
Material Meets These Standard(s): ASTM-A681,SAE-J-437

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