Powerful, lightweight, hand held, air powered pistol grip needle scaler quickly removes coatings, rust and slag. Can be used to remove paint, rust and weld slag from various surfaces, including steel and concrete. Requires 6 CFM of air at 90 psi to produce 4600 blows per minute. One of the major benefits of the needle scaler is it’s ability to get into tight, hard to reach areas. Comes in a toolbox and is preloaded with 53, plus an extra 53 pack of 2mm x 7 inch long, hardened steel needles. Replacement needles: part number 805031 can be ordered separately.