HANDTOOLS (NONPOWERED) at Asbury Advanced Materials
EE was tightening a bolt on the end of the rotary dryer. Co-worker was holding the nut in place with a large wrench to assist EE in tightening the bolt. The large wrench slipped off the nut and co-worker lost control of the wrench. It struck EE in the upper lip breaking his tooth.
U.S. Mine Safety and Health Administration