MECAHNIC WAS REPLACING FILTERS IN THE ROTOCLONE ON THE M3 DRILL. ONE FILTER HAD COME APART AND WAS CAUGHT ON ANOTHER FILTER AND WOULD NOT DROP OUT. THE MECHANIC TOOK THE NUT OFF THE SECOND FIL TER AND BOTH FILTERS DROPPED OUT AND STRUCK HIM ON THE RIGHT HAND CAUSING A CUT ON HIS ITTLE FINGER.