Sigma Green Max Grinding Wheels

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Product Description

For a longer life option, we are now offering the new 1/4” thick Sigma Green Max Grinding Wheels.

This fast grinding wheel has the same specialty grain and bond combination as the original Sigma Green, but with the added benefit of a thicker wheel.

Even with the added thickness, the Sigma Green Max still is noticeably quieter and better balanced than other similar 1/4” wheels on the market.


  • Stainless steel
  • Mild steel
  • Hard face
  • Titanium
  • Alloys
  • Aluminum

Virtually Iron Free:

Contains only .035% iron, with less than 0.1% of iron, chlorine, and sulfur combined


  • Tank fabrication
  • Power plant maintenance and repair
  • Welding/metal fabrication
  • Shipbuilding
  • Foundries
  • Heavy weldment fabrication


  • High performance grain
  • Fast stock removal
  • Superior finish
  • Grinds smooth and quiet
  • Minimizes operator fatigue
  • Controled grinding
  • Cool cutting
  • Won’t discolor or warp stainless
Size DiameterMaximum RPMSpecificationArborQuantity Per BoxPart No.
4-1/2 13,30036GRIT7/8 20739100
4-1/2 13,30036GRIT5/8-1110739150
512,20036GRIT7/8 20739101
5 12,20036GRIT5/8-1110739151
7 850036GRIT7/8 20739103
7 850036GRIT5/8-1110739153

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