Oregon OSHA

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Machines that use abrasive wheels are powerful and most operate at high speeds. Some abrasive wheels operate at several thousand revolutions per minute. If a grinding wheel shatters while it is turning, the fragments from the wheel assembly (including the flange, spindle end, and nut) can travel at more than 300 miles per hour. To ensure that abrasive wheels are safely used in your workplace, know the hazards and how to control them.