Hardened Bars

Using Griggs’ premium pre-hardened M2 and M42 bars will save you time, energy and money. Using our hardened bars provides you with the fastest way to meet your customers’ delivery demands. Our bars are guaranteed to be straight and are uniformly hardened and stable. Hardened bars are clearly the best solution when manufacturing longer tools. Whether you are making a drill, tap, reamer, pin, punch or other high speed steel tools, we know you will be pleased with our product performance

  • Bars are 78.7″ (2000mm) long
  • Material sold by the bar
  • Pricing by the pound

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Diameter Tolerance

Diameter (inch)Unground (UG)Max Decarb
.0791 to .1252.00158, -.000790.002
.1253 to .1417.00236, -.000790.002
.1418 to .2362.00236, -.000790.002
.2363 to .3937.00315, -.000790.006
.3938 to .5118.00394, -.000790.010

Out of roundness is at a maximum 1/2 of the diameter tolerance

M2

64-66 HRC

0.1010.2280.433
0.1090.2350.437
0.1180.250.446
0.1280.260.472
0.1320.2670.484
0.1370.2810.492
0.1440.2880.508
0.1570.3150.515
0.1690.3340.522
0.1770.3540.563
0.1800.3590.582
0.1850.3740.602
0.1960.3830.622
0.2030.3940.642
0.2180.405

M42

65-67 HRC

0.1060.258
0.1090.275
0.1280.281
0.1410.297
0.1550.312
0.1640.320
0.1690.350
0.1770.390
0.1850.406
0.1910.420
0.1950.444
0.2030.484
0.2130.490
0.2240.515
0.2400.583
0.2560.642

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Thickness

Width

Length

LBS

WEIGHT LBS/IN:

WEIGHT LBS/FT:

Rounds Calculator


Diameter

Length

LBS

WEIGHT LBS/IN:

WEIGHT LBS/FT:

M48: ADD 3.75% | PM T15: ADD 2.5%
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