Here's a quick and cheap line stripper. Take a piece of 2x2 board approx. 6 to 8 inches long and screw a 3 inch screw or nail a 20 penny nail in the end as close to center as possible. Grind or clip the head of the screw or nail off. Take your electric/cordless drill and place the screw/nail in the drill. Now you have a cheap high speed stripper. Electric drills work better, more rpm and no battery drain.