EE WAS USING A UTILITY KNIFE TO CUT OUT AND REPLACE WORN BELT CLAMPS ON A 24"" CONVEYOR BELT. EE HAD BOTH KNEES DOWN ON THE BELT CUTTING OUT THE CLAMPS. EE WAS USING THE KNIFE PULLING TOWARDS H IM IN THE CUTTING MOTION. WHEN HE PUT MORE PRESSURE ON THE KNIFE TO CUT, THE KNIFE CUT THRU THE BELT AND INTO HIS RIGHT LEG.