Package Include:1 x Air Hammer4 x Chisel4 x ChuckSpecifications:Features: - Alloyed-steel barrel and heat-treated piston.- Built-in power regulator and trigger control.- Coil spring retainer for fast-and-easy chisel changes.- Pistol Type design, hand-held operation flexible and convenient.- High-performance motor, durable.- High impact frequency, power output stable and smooth.- Equipped with 4 different blade to meet different operating needs.- After quenching, surface coating, durable fastening.- Intake air inlet volume can be adjusted according to actual needs.- Air intake filter design, effective filtering of impurities.- Applicable to paint, auto repair, hardware, ceramic lighting, stone processing, wall treatment (construction), carving process, grinding and other operations.