Hard Rock Sand and Gravel · Struck against stationary object
EE (Welder and Mechanic) was getting an air line off of a truck frame. EE needed to cut the line. EE was pulling the line up and holding it with left hand and cutting with right hand. EE was cutting away from self when the line unexpectedly separated. EE's left hand jerked back and hit something on the truck frame resulting in the laceration to EE's hand.