EE WAS LOOSENING A BOLT THAT HOLDS THE CUTTING EDGE ON THE UNILOADER. HE WAS USING AN ELECTRICAL WRENCH ON THE NUT ON TOP. THE BOLT IS COUNTERSUNK SO YOU DON'T NEED A WRENCH TO HOLD THE BOLT WHEN YOU ARE LOOSENING THE NUT. HOWEVER, EE WHENEE LOOSENED THE NUT THE BOLT CAME OFF OF THE COUNTERSUNK HOLE. EE HAD GLOVES ON SO HE PUSHED THE BOLT AND THE NUT TURNED AND CUT HIS FINGER.