Employees were connecting rods to a boring machine. One of the rods was extremely crooked, so the employees shut the machine off and tried to correct the rod so that it would run correctly. Two employees were holding the rod while a third held the tip of one rod to insert it into the hole they intended to bore. The machine was turned on. The guide wire that ran along the rod entangled the third employee's sleeve and glove; it then jerked his arm and forced his entire body into a rotation. He suffered an amputation to the right thumb, as well as a fracture and a laceration to the right hand.