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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


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

1/64" 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"
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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"
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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"
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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"
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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
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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
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11623

1/32" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11623

Dimensions

  • Thickness: 0.0313"
  • Width: 1.25"
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" Tool Steel Rectangle Bar O1 Precision Ground Part # 11622

1/32" x 1" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11622

Dimensions

  • Thickness: 0.0313"
  • Width: 1"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11621

1/32" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11621

Dimensions

  • Thickness: 0.0313"
  • Width: 0.75"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

1/32" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11620

1/32" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11620

Dimensions

  • Thickness: 0.0313"
  • Width: 0.5"
View more product details Click for more details
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 6" Tool Steel Rectangle Bar O1 Precision Ground Part # 11641

3/64" x 6" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11641

Dimensions

  • Thickness: 0.0469"
  • Width: 6"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11640

3/64" x 4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11640

Dimensions

  • Thickness: 0.0469"
  • Width: 4"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 3 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11639

3/64" x 3 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11639

Dimensions

  • Thickness: 0.0469"
  • Width: 3.5"
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 11638

3/64" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11638

Dimensions

  • Thickness: 0.0469"
  • Width: 3"
View more product details Click for more details
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11637

3/64" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11637

Dimensions

  • Thickness: 0.0469"
  • Width: 2.5"
View more product details Click for more details
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11636

3/64" x 2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11636

Dimensions

  • Thickness: 0.0469"
  • Width: 2"
View more product details Click for more details
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11635

3/64" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11635

Dimensions

  • Thickness: 0.0469"
  • Width: 1.5"
View more product details Click for more details
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

3/64" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11634

3/64" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11634

Dimensions

  • Thickness: 0.0469"
  • Width: 1.25"
View more product details Click for more details
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Material Meets These Standard(s): ASTM-A681,SAE-J-437

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