Hudson Tool Steel
California:800-996-0411 New Hampshire:866-557-2874 North Carolina:800-991-0306 Tennessee:888-848-0037
Illinois:800-338-4566 Michigan:833-235-1678

Tool Steel & High Speed Steel For Manufacturers

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Tool Steel Size Tolerances

Tool Steel is stocked to tolerances per ASTM A681-08. Round bars are turned to plus tolerances to allow customers to finish to the nominal diameter. Flat bars are ground on the thickness to plus tolerances ranging from +.015 to +.090 depending on the thickness of the material.

Width tolerances on flat bars is +.125/.150 and the edge is saw cut. Length tolerance on all flats and rounds is +.125/.250. Tool Steel flats can also be saw cut on the thickness for sizes over 3", which will result in tolerances up to .250 over nominal size. Please ask your salesperson for detail regarding the tool steel flats you're interested in.

High Speed Steel Size Tolerances

High Speed Steel is produced and stocked to tolerances per ASTM A600-92A (2010). High speed steel round bar can be bought on-size (+.004,-.000) or oversize (+.015,-.000). High speed flats can be bought ground oversize, saw cut, or hot rolled. Please ask your salesperson for detail regarding the high speed steel flat you're interested in.

Precision Flat Ground Stock - Grades and Size Tolerances
  • O1
  • A2
  • S7
  • D2
  • M2
  • 4140
  • LOW CARBON 1018
  • On-size Thickness Tolerance -     +/- .001
  • On-size Width Tolerance -         +.000/.015, -.000
  • On-size Length Tolerance -         +.125, -.000
  • Over-size Thickness Tolerance -   +.010/.015, -.000
  • Oversize Width Tolerance -        +.010/.015, -.000
  • Over-size Length Tolerance -       +.125, -.000
Drill Rod - Grades and Size Tolerances
  • O1
  • A2
  • W1
  • S7
  • D2
  • M2
Diameter Tolerance
  • .000 - .124      +/- .0003
  • .125 - .499      +/- .0005
  • .500 - 3.000     +/- .0010
Length Tolerance - All Sizes
  • +.125, -.000
Straightness Tolerance - All Sizes
  • T I R - .005

*CPM, 1V, 3V, 9V, 10V, 15V, S30V, S90V, Rex M4, Rex T15, and Rex 76 are trademarks of Crucible Industries LLC

TRUSQUARE

Close tolerance squared tool steel made to your requirements. TRUSQUARE helps you by cutting time out of the processing of your tool steel blocks.

Hudson Tool Steel Corporation© 2023 Hudson Tool Steel
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California800-996-0411

17871 Park Plaza Dr., Suite #135
Cerritos, CA 90703

New Hampshire866-557-2874

14 Industrial Park Dr
Dover, NH 03820

North Carolina800-991-0306

434 Springbrook Road
Charlotte, NC 28217

Illinois800-338-4566

7987 Crest Hills Drive
Loves Park, IL 61111

Sales Offices: Tennessee 888-848-0037 Michigan 833-235-1678