How to Use a Grinder to Cut Metal

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Angle grinders cut metal.
Angle grinders cut metal. (Image: Stockbyte/Stockbyte/Getty Images)

Angle grinders are hand-held power tools designed specifically for cutting through materials too dense or hard for an ordinary blade. As the name suggests, angle grinders do not have a cutting blade but a heavy grinding wheel. The grinding wheel allows angle grinders to cut through metal or other dense materials without damaging the power tool itself. To cut metal with an angle grinder requires a few special precautions.

Things You'll Need

  • Long-sleeved shirt
  • Workbench
  • C-clamp
  • Heavy work gloves

Prepare to work by putting on the long-sleeved shirt. Place the metal you wish to cut on your workbench and secure it with the C-clamp.

Ensure the grinding wheel is secure on your angle grinder. Tighten the securing nut with your hand if it is not tight.

Put on your work gloves. Grinding through metal will produce a torrent of sparks, and the shirt and gloves will help protect you.

Turn on the grinder and lower it very slowly onto the metal where you wish to cut. Do not try to force the grinding wheel through the metal faster than it will go.

Continue grinding until you have cut all the way through the metal, then turn off your grinder.

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