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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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1" x 6" Tool Steel Rectangle Bar O1 Precision Ground Part # 12371

1" x 6" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12371
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
$637.67 for 1
$637.67 ea.

Dimensions

  • Thickness: 1"
  • 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
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tool-steel-rectangle-bar-o1-1superZoom-desk12371

1" x 12" Tool Steel Rectangle Bar O1 Precision Ground Part # 12374

1" x 12" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12374
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
$1,314.55 for 1
$1,314.55 ea.

Dimensions

  • Thickness: 1"
  • 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-desk12374

1" Tool Steel Square Bar A2 Ground Oversize Part # 12446

1" Tool Steel Square Bar A2 Ground Oversize -
Part #: 12446
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
$380.88 for 1
$380.88 ea.

Dimensions

  • Height: 1"
Click for more details
tool-steel-square-bar-a2-oversize-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-square-bar-a2-oversize-1superZoom-desk12446

1" Tool Steel Square Bar O1 Ground Oversize Part # 12448

1" Tool Steel Square Bar O1 Ground Oversize -
Part #: 12448
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
$188.10 for 1
$188.10 ea.

Dimensions

  • Height: 1"
Click for more details
tool-steel-square-bar-o1-oversize-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-square-bar-o1-oversize-1superZoom-desk12448

1" Carbon Steel Square Bar 1018 Precision Ground Part # 12483

1" Carbon Steel Square Bar 1018 Precision Ground -
Part #: 12483
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
$135.58 for 1
$135.58 ea.

Dimensions

  • Height: 1"
Click for more details
tool-steel-square-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-square-bar-1018-1superZoom-desk12483

1" Tool Steel Square Bar O1 Precision Ground Part # 12485

1" Tool Steel Square Bar O1 Precision Ground -
Part #: 12485
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
$184.42 for 1
$184.42 ea.

Dimensions

  • Height: 1"
Click for more details
tool-steel-square-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-square-bar-o1-1superZoom-desk12485

1" Tool Steel Square Bar A2 Precision Ground Part # 12484

1" Tool Steel Square Bar A2 Precision Ground -
Part #: 12484
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
$211.85 for 1
$211.85 ea.

Dimensions

  • Height: 1"
Click for more details
tool-steel-square-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-square-bar-a2-1superZoom-desk12484

1" x 2" Tool Steel Rectangle Bar H13 Ground Oversize Part # 19110

1" x 2" Tool Steel Rectangle Bar H13 Ground Oversize -
Part #: 19110
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
$733.33 for 1
$733.33 ea.

Dimensions

  • Thickness: 1"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-h13-oversize-1superZoom-mob{product.code}

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-h13-oversize-1superZoom-desk19110

1" x 3" Tool Steel Rectangle Bar H13 Ground Oversize Part # 19115

1" x 3" Tool Steel Rectangle Bar H13 Ground Oversize -
Part #: 19115
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
$977.57 for 1
$977.57 ea.

Dimensions

  • Thickness: 1"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-h13-oversize-1superZoom-mob{product.code}

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-h13-oversize-1superZoom-desk19115

1" x 4" Tool Steel Rectangle Bar H13 Ground Oversize Part # 19120

1" x 4" Tool Steel Rectangle Bar H13 Ground Oversize -
Part #: 19120
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
$1,221.96 for 1
$1,221.96 ea.

Dimensions

  • Thickness: 1"
  • Width: 4"
Click for more details
tool-steel-rectangle-bar-h13-oversize-1superZoom-mob{product.code}

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-h13-oversize-1superZoom-desk19120

1" Tool Steel Square Bar H13 Ground Oversize Part # 19353

1" Tool Steel Square Bar H13 Ground Oversize -
Part #: 19353
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
$445.02 for 1
$445.02 ea.

Dimensions

  • Height: 1"
Click for more details
tool-steel-square-bar-h13-oversize-1superZoom-mob{product.code}

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
tool-steel-square-bar-h13-oversize-1superZoom-desk19353

1 1/8" Carbon Steel Square Bar 1018 Precision Ground Part # 12375

1 1/8" Carbon Steel Square Bar 1018 Precision Ground -
Part #: 12375
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
$159.70 for 1
$159.70 ea.

Dimensions

  • Height: 1.125"
Click for more details
tool-steel-square-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-square-bar-1018-1superZoom-desk12375

1 1/8" Tool Steel Square Bar O1 Precision Ground Part # 12376

1 1/8" Tool Steel Square Bar O1 Precision Ground -
Part #: 12376
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
$348.07 for 1
$348.07 ea.

Dimensions

  • Height: 1.125"
Click for more details
tool-steel-square-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-square-bar-o1-1superZoom-desk12376

1 1/8" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12377

1 1/8" x 1 1/2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12377
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
$233.06 for 1
$233.06 ea.

Dimensions

  • Thickness: 1.125"
  • 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-desk12377

1 1/8" x 2" Tool Steel Rectangle Bar O1 Precision Ground Part # 12378

1 1/8" x 2" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12378
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
$277.21 for 1
$277.21 ea.

Dimensions

  • Thickness: 1.125"
  • 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-desk12378

1 1/8" x 4" Tool Steel Rectangle Bar O1 Precision Ground Part # 12380

1 1/8" x 4" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12380
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
$453.55 for 1
$453.55 ea.

Dimensions

  • Thickness: 1.125"
  • 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-desk12380

1 1/8" x 6" Tool Steel Rectangle Bar O1 Precision Ground Part # 12381

1 1/8" x 6" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12381
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
$526.05 for 1
$526.05 ea.

Dimensions

  • Thickness: 1.125"
  • 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-desk12381

1 1/8" x 3" Tool Steel Rectangle Bar O1 Precision Ground Part # 12379

1 1/8" x 3" Tool Steel Rectangle Bar O1 Precision Ground -
Part #: 12379
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
$365.33 for 1
$365.33 ea.

Dimensions

  • Thickness: 1.125"
  • 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-desk12379

1 1/4" x 3 1/2" Tool Steel Rectangle Bar A2 Precision Ground Part # 13761

1 1/4" x 3 1/2" Tool Steel Rectangle Bar A2 Precision Ground -
Part #: 13761
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
$770.63 for 1
$770.63 ea.

Dimensions

  • Thickness: 1.25"
  • Width: 3.5"
Click for more details
tool-steel-rectangle-bar-a2-1superZoom-mob{product.code}

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-desk13761

1 1/4" x 2" Tool Steel Rectangle Bar A2 Ground Oversize Part # 11610

1 1/4" x 2" Tool Steel Rectangle Bar A2 Ground Oversize -
Part #: 11610
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
$483.28 for 1
$483.28 ea.

Dimensions

  • Thickness: 1.25"
  • Width: 2"
Click for more details
tool-steel-rectangle-bar-a2-oversize-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-oversize-1superZoom-desk11610

1 1/4" x 3" Tool Steel Rectangle Bar A2 Ground Oversize Part # 11611

1 1/4" x 3" Tool Steel Rectangle Bar A2 Ground Oversize -
Part #: 11611
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
$668.97 for 1
$668.97 ea.

Dimensions

  • Thickness: 1.25"
  • Width: 3"
Click for more details
tool-steel-rectangle-bar-a2-oversize-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-oversize-1superZoom-desk11611

1 1/4" x 1 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18669

1 1/4" x 1 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18669
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
$562.13 for 1
$562.13 ea.

Dimensions

  • Thickness: 1.25"
  • Width: 1.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18669

1 1/4" x 2 1/2" Stainless Rectangle Bar 410 Precision Ground Part # 18692

1 1/4" x 2 1/2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18692
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
$703.42 for 1
$703.42 ea.

Dimensions

  • Thickness: 1.25"
  • Width: 2.5"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18692

1 1/4" x 2" Stainless Rectangle Bar 410 Precision Ground Part # 18690

1 1/4" x 2" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18690
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
$698.10 for 1
$698.10 ea.

Dimensions

  • Thickness: 1.25"
  • Width: 2"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18690

1 1/4" x 3" Stainless Rectangle Bar 410 Precision Ground Part # 18716

1 1/4" x 3" Stainless Rectangle Bar 410 Precision Ground -
Part #: 18716
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
$875.88 for 1
$875.88 ea.

Dimensions

  • Thickness: 1.25"
  • Width: 3"
Click for more details
stainless-rectangle-bar-410-1superZoom-mob{product.code}
Material Meets These Standard(s): ASTM-A240

Key Features

MTR FREE MTR Available
View more product details View more product details
View more product details Click for more details
stainless-rectangle-bar-410-1superZoom-desk18716

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