The bosch gsh 5 ce professional demolition hammer with sds max is unbeatably powerful and has up to 40 less vibration it has 83j of impact energy for a high material removal rate and the vibration control feature ensures more comfortable working even in time intensive applications the robust metal housing provides a long tool lifetime and the patented setting wheel provides custom adjustment of the impact rate for optimum performance there is a patented lockable switch for low fatigue chis