Grinding & Cut-Off Wheels

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Expected delivery: Wed, Nov 18

Bonded abrasive wheels cut and grind metal, concrete and stone. This section covers thin Type 1 and Type 27 cut-off wheels for angle grinders and die grinders, depressed center (Type 27) grinding wheels, combination cut and grind wheels, large chop saw and cut-off saw wheels, bench and pedestal grinder wheels, and diamond blades for masonry. Grains include aluminum oxide for steel, zirconia and ceramic blends for stainless and heavy cutting, and silicon carbide for masonry.

What to check before you order

  • Wheel type. Cut-off wheels cut on the edge only. Grinding wheels are thicker and are made to grind at an angle on the face.
  • Size, thickness and arbor. Match the diameter and arbor hole to the tool and guard. Thinner wheels cut faster with less burr but wear sooner.
  • Maximum speed. The RPM printed on the wheel must equal or exceed the tool's rated speed.
  • Material. Pick a wheel marked for steel, stainless or masonry. Stainless work calls for a wheel labeled iron-free or contaminant-free.
  • Storage and inspection. Check for cracks before mounting, and follow ANSI B7.1, OSHA requirements and the manufacturer's instructions.

Buying guide: Abrasive grit guide: which grit and disc type to use

Common questions

How do I check a bench grinder wheel before mounting?

A common practice is the ring test: tap the dry wheel lightly with a non-metal tool and listen for a clear ring. A dull sound can mean a crack. Do not use a wheel that fails.

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