Machinery with rotating parts can be hazardous because they can catch loose clothing or jewelry and pull the hand into the machine. For the same reason, you should also not wear gloves when feeding stock into rotating parts. Never stick any part of your body between the moving parts of machinery. Injuries caused by these types of situations are often severe because the same force required to operate the machine is now being applied to your hands and fingers. As a general rule, avoid any contact with moving parts of the machine.