EE was attempting to remove a bolt and nut. The nut was welded to a bracket. While using an impact gun, the wrench slipped off the nut, causing the bracket to spin. This caused a cut to the left pinky finger. EE tried to get bracket off by using a wrench so the bracket wouldn't spin, but it did, when the wrench slipped the bracket spun. This required 5 stitches to pinky finger.