The incident occurred on 5 NO mains. The ee was installing 18"" belt hangers. Had drilled the hole and placed the paddle wrench in the drill pot. Turned to pick up an 18"" RB when he hit the rotation on the RB. Paddle wrench rotating in the drill pot when the injured turned into the rotating wrench, striking him in the Rt cheek. The ee sustained fractured to both cheek bones.