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Tool Steel Rectangle Bar O1 Precision Ground

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Tool Steel Rectangle Bar O1 Precision Ground

The O1 precision-ground tool steel rectangle bar is an oil-hardening material known for its excellent machinability and predictable heat-treatment results. These bars are frequently used for making bushings, jigs, and custom hand tools that require a sharp and durable cutting edge. The precision-ground finish provides a smooth, scale-free surface that is perfectly flat and within tight size tolerances. O1 is the go-to choice for toolmakers who need a reliable, high-quality steel that is easy to work with and harden. Find the precision-ground O1 you need at Onlinemetals.com to streamline your custom toolmaking and fabrication.

Material Properties

Link Icon Tool Steel O1 Product Guide | Link Icon Tool Steel O1 Rectangle Bar Tolerances

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1/8" x 10" Tool Steel Rectangle Bar O1 Precision Ground Part # 11818

1/8" x 10" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11818
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$293.83 for 1
$293.83 ea.

Dimensions

  • Thickness: 0.125"
  • Width: 10"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
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tool-steel-rectangle-bar-o1-1superZoom-desk11818

1/8" x 12" Tool Steel Rectangle Bar O1 Precision Ground Part # 11819

1/8" x 12" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11819
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$349.58 for 1
$349.58 ea.

Dimensions

  • Thickness: 0.125"
  • Width: 12"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
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tool-steel-rectangle-bar-o1-1superZoom-desk11819

1/8" x 14" Tool Steel Rectangle Bar O1 Precision Ground Part # 11820

1/8" x 14" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11820
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$403.70 for 1
$403.70 ea.

Dimensions

  • Thickness: 0.125"
  • Width: 14"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11820

9/64" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11821

9/64" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11821
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$33.00 for 1
$33.00 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 0.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11821

9/64" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11822

9/64" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11822
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$37.63 for 1
$37.63 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 0.75"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11822

9/64" x 1" Tool Steel Rectangle Bar O1 Precision Ground Part # 11823

9/64" x 1" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11823
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$44.63 for 1
$44.63 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 1"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11823

9/64" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11824

9/64" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11824
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$53.68 for 1
$53.68 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 1.25"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11824

9/64" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11825

9/64" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11825
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$57.85 for 1
$57.85 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 1.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11825

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
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$71.63 for 1
$71.63 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11826

9/64" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 11827

9/64" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11827
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$99.00 for 1
$99.00 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11827

9/64" x 4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11828

9/64" x 4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11828
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$127.52 for 1
$127.52 ea.

Dimensions

  • Thickness: 0.1406"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11828

5/32" x 1/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11868

5/32" x 1/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11868
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$80.75 for 1
$80.75 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 0.25"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11868

5/32" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11870

5/32" x 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11870
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$32.80 for 1
$32.80 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 0.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11870

5/32" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11871

5/32" x 3/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11871
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$40.15 for 1
$40.15 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 0.75"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11871

5/32" x 3/8" Tool Steel Rectangle Bar O1 Precision Ground Part # 11869

5/32" x 3/8" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11869
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$46.85 for 1
$46.85 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 0.375"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11869

5/32" x 1" Tool Steel Rectangle Bar O1 Precision Ground Part # 11872

5/32" x 1" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11872
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$47.47 for 1
$47.47 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 1"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11872

5/32" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11873

5/32" x 1 1/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11873
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$54.38 for 1
$54.38 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 1.25"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11873

5/32" x 1 3/4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11875

5/32" x 1 3/4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11875
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$68.72 for 1
$68.72 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 1.75"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11875

5/32" x 2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11876

5/32" x 2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11876
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$76.20 for 1
$76.20 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11876

5/32" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11874

5/32" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11874
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$61.50 for 1
$61.50 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 1.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11874

5/32" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 11877

5/32" x 2 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11877
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$90.57 for 1
$90.57 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 2.5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11877

5/32" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 11878

5/32" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11878
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$105.13 for 1
$105.13 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11878

5/32" x 4" Tool Steel Rectangle Bar O1 Precision Ground Part # 11879

5/32" x 4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11879
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$135.50 for 1
$135.50 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11879

5/32" x 5" Tool Steel Rectangle Bar O1 Precision Ground Part # 11880

5/32" x 5" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11880
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$164.93 for 1
$164.93 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 5"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11880

5/32" x 6" Tool Steel Rectangle Bar O1 Precision Ground Part # 11881

5/32" x 6" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 11881
Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$194.18 for 1
$194.18 ea.

Dimensions

  • Thickness: 0.1563"
  • Width: 6"
Click for more details
tool-steel-rectangle-bar-o1-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681 , SAE-J-437

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-rectangle-bar-o1-1superZoom-desk11881

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