Good work practices will ensure that bench grinders do not expose workers to hazards.
Bench grinders are one of the most commonly used tools in metal fabrication.
Generally they are safe and reliable if care is taken with the grinding wheels. Bench grinder wheels can shatter into dangerous projectiles through lack of regular inspection and maintenance or improper use. Before mounting a grinding wheel on a machine, make sure the power is turned off at the power point switch and the plug removed. Occasionally a new wheel is cracked or flawed, and is likely to shatter as soon as it is used. New wheels should always be visually checked and given a resonance test before being fixed to the spindle.