PRO GSH5MX New tools | High efficiency thanks to innovative 7.8 J impact system to finish demolition tasks fast, High performance with innovative 2,900 bpm impact system equipped with large hammer pipe, Enhanced tool service life thanks to leak-resistant grease sealing ring and dust-proof cap, Maximum control with one-handed vario-lock and 12 chisel bit positions for multiple applications, Less fatigue thanks to impact mechanism?s low-vibration damping ring system, High working comfort with compact ergonomic design