SP-1400 Heavy-Duty Long Barrel Air Hammer has longer piston strokes for more force per blow. An excellent power-to-weight ratio makes this tool one of the most powerful hammers in the market . This heavy-duty pistol grip hammer has a standard 0.401 round shank for fast action and the ability to withstand rugged use. The SP-1400 a great tool for muffler and pipe removal, body shop work, scraping rust and light front-end work.