The machine has light-weight, simple structure, operate facility, auto stop when bump objective into pieces. It is suitable for drilling in mine, mining the soft ore; diging pole and feet-hole, karating water-ditch; or crashing concrete and clay in construction work; or working in the situation that need producing the impact in the mechanical industry such as assemble and unassemble the cincture pin in tractor, panzer and so on.  
Specification:
Exterior Dimension (L*W*H)           456*160*110mm
Weigh                                 7.2kg
Rammar dia                            35mm
Rammar stroke                         120mm
Rammar weigh                          0.6kg
Work air pressure               0.4~0.49Mpa
Impact energy(0.49Mpa)               ¡Ý30J
Impact frequency(0.49Mpa)              ¡Ý21.6Hz
Air consumption(0.49Mpa)               ¡Ü20L/S
Air pipe inner dia                    19mm