Super Heavy Duty.401 shank, long barrel air hammer "Shock Vibration Reduction" technology ensures operator comfort, safety and prevents potential physical damage Hits harder with less effort Designed with an ergonomic "T" handle grip for balance and comfort Developed for demanding use such as: exhaust systems, front end work, bushing driving, cutting, general repairs and heavy production work Equipped with heavy duty quick coupler retainer for quick bit changes Complete with 5 bits in a blow mould case Kit includes: Air Hammer 404126 (AH150SD), quick coupler retainer (408291), 1-Inch O.D. Hammer, Panel Cutter, Narrow Face Chisel, Wide Face Chisel, Tapered Punch