IR121 Makes fast work of body panel crimping and cutting, bushing, driving, shearing and general front end work with this air hammer. Professional touch trigger for total control. Long-life tool with a tough one piece alloy barrel. Easy to maintain with an “easy out” throttle valve assembly. IR121-K6 is available in kit form with a blow-molded plastic case with a removable lid. Inlcudes 6 chisels.