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Pictures & Tolerances

Parts We Grind and Tolerances We Hold
The picture to the left shows examples of parts we grind. The chart below shows the tolerances held for some of the parts.
This is just a small number of the various parts we grind.

# Material Thickness Parallelism Flatness Surface Finish (Ra)
1 1010 Steel .170 +/- .003 .003 .004 125
2 Carbon Steel .279 +/- .005 .004 .009 63
3 1022 SAE Hot Rolled .2789 +/- .0004 .0005 .0005 -
4 Heat Treated Fully Dense M2 Powder .282 +/- .001 .001 .001 -
5 1015 Steel Hot Rolled, Pickled & Oiled .185 +/- .005 .0025 .0025 63
6 316L Stainless Steel Powder .3142 +/- .0009 .0002 .0005 32
7 Low Carbon Steel / SAE 794 Bronze .1245 +/- .0005 .001 .005 50
8 HR-C 4130 .147 +/- .002 .003 .001 50
- 1074 Spring Steel - 58-62 HRC .081 +/- .001 .001 .002 20
- Iron Powder - 7.3 g/cc .2995 +/- .001 .002 .002 16
- AMS 5596 (Inconel alloy) .220 +/- .001 .001 .001 125
- Titanium 6AL-4V .167 +/- .0015 .002 .002 125
- 304 Stainless Steel .183 +/- .0015 .0015 .002 -

  1. All units in inches.
  2. All print tolerances held to 1.33 Cpk or higher except surface finish which is held to a 1.00 Cpk or higher.
Double disc grinding can replace lapping, surface grinding, and blanchard grinding in some applications!
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