Before attaching a grinding wheel to its mounting on a power grinder hang it from a cord and tap it lightly with the end of a spanner or a similar small tool. If the tone sounds flat, do not use the wheel. It is almost certainly fractured and will be extremely dangerous if it breaks apart while spinning. The wheel should give a clear ,,ring – in much the same way as a crystal glass rings when its rim is flicked with a finger-nail.
Leave a Reply