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Ground Flat Stock

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Ground Flat Stock

Ground flat stock at OnlineMetals is a precision-ground, rectangular bar made from high-quality tool, alloy, stainless, or carbon steels, engineered to tight tolerances for flatness, dimension, and surface finish. It’s ideal for applications in tool & die, machining, gauges, or precision parts where consistent thickness and smooth surfaces are essential. OnlineMetals offers a range of grades—such as A2, D2, O1, 4140, and various stainless alloys—cut to size to avoid excess material waste. The stock is surface ground on all four faces, eliminating defects and decarburization, and arrives ready for further machining or finishing. With quick processing and inventory across multiple grades and sizes, it provides an efficient, reliable source for professionals and hobbyists needing precision material.

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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
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
$125.48 for 1
$125.48 ea.

Dimensions

  • Thickness: 0.0469"
  • Width: 3.5"
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
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tool-steel-rectangle-bar-o1-1superZoom-desk11639

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
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
$172.88 for 1
$172.88 ea.

Dimensions

  • Thickness: 0.0469"
  • 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
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tool-steel-rectangle-bar-o1-1superZoom-desk11640

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
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
$207.55 for 1
$207.55 ea.

Dimensions

  • Thickness: 0.0469"
  • 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-desk11641

3/64" x 1/2" Tool Steel Rectangle Bar A2 Precision Ground Part # 19046

3/64" x 1/2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 19046
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
$37.35 for 1
$37.35 ea.

Dimensions

  • Thickness: 0.0469"
  • Width: 0.5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk19046

3/64" x 3/4" Tool Steel Rectangle Bar A2 Precision Ground Part # 19050

3/64" x 3/4" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 19050
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
$50.58 for 1
$50.58 ea.

Dimensions

  • Thickness: 0.0469"
  • Width: 0.75"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk19050

3/64" x 1" Tool Steel Rectangle Bar A2 Precision Ground Part # 19054

3/64" x 1" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 19054
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
$58.13 for 1
$58.13 ea.

Dimensions

  • Thickness: 0.0469"
  • Width: 1"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk19054

3/64" x 1 1/4" Tool Steel Rectangle Bar A2 Precision Ground Part # 19058

3/64" x 1 1/4" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 19058
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
$68.55 for 1
$68.55 ea.

Dimensions

  • Thickness: 0.0469"
  • Width: 1.25"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk19058

3/64" x 1 1/2" Tool Steel Rectangle Bar A2 Precision Ground Part # 19062

3/64" x 1 1/2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 19062
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
$78.50 for 1
$78.50 ea.

Dimensions

  • Thickness: 0.0469"
  • Width: 1.5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk19062

3/64" x 2" Tool Steel Rectangle Bar A2 Precision Ground Part # 19066

3/64" x 2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 19066
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
$99.15 for 1
$99.15 ea.

Dimensions

  • Thickness: 0.0469"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk19066

1/16" x 1 1/4" Tool Steel Rectangle Bar A2 Precision Ground Part # 4731

1/16" x 1 1/4" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 4731
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
$45.28 for 1
$45.28 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 1.25"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk4731

1/16" x 1 1/2" Tool Steel Rectangle Bar A2 Precision Ground Part # 4747

1/16" x 1 1/2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 4747
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
$52.15 for 1
$52.15 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 1.5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk4747

1/16" x 2" Tool Steel Rectangle Bar A2 Precision Ground Part # 4749

1/16" x 2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 4749
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
$65.60 for 1
$65.60 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk4749

1/16" x 2 1/2" Tool Steel Rectangle Bar A2 Precision Ground Part # 4750

1/16" x 2 1/2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 4750
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
$79.35 for 1
$79.35 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 2.5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk4750

1/16" x 1" Tool Steel Rectangle Bar A2 Precision Ground Part # 4730

1/16" x 1" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 4730
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
$38.75 for 1
$38.75 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 1"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk4730

1/16" x 4" Tool Steel Rectangle Bar A2 Precision Ground Part # 4753

1/16" x 4" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 4753
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
$122.65 for 1
$122.65 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk4753

1/16" x 3" Tool Steel Rectangle Bar A2 Precision Ground Part # 4751

1/16" x 3" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 4751
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
$84.10 for 1
$84.10 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-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-a2-1superZoom-desk4751

1/16" x 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11642

1/16" x 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11642
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
$21.09 for 1
$21.09 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 0.5"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11642

1/16" x 3/4" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11643

1/16" x 3/4" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11643
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
$25.55 for 1
$25.55 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 0.75"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11643

1/16" x 1" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11644

1/16" x 1" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11644
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
$30.43 for 1
$30.43 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 1"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11644

1/16" x 1 1/4" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11645

1/16" x 1 1/4" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11645
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
$35.26 for 1
$35.26 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 1.25"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11645

1/16" x 1 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11646

1/16" x 1 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11646
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
$39.94 for 1
$39.94 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 1.5"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11646

1/16" x 2 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11648

1/16" x 2 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11648
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
$62.43 for 1
$62.43 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 2.5"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11648

1/16" x 3" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11649

1/16" x 3" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11649
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
$71.49 for 1
$71.49 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11649

1/16" x 2" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11647

1/16" x 2" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11647
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
$51.50 for 1
$51.50 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11647

1/16" x 3 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground Part # 11650

1/16" x 3 1/2" Carbon Steel Rectangle Bar 1018 Precision Ground -
Part #: 11650
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
$81.41 for 1
$81.41 ea.

Dimensions

  • Thickness: 0.0625"
  • Width: 3.5"
Click for more details
tool-steel-rectangle-bar-1018-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A681

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-1018-1superZoom-desk11650

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