Bosch gsh11vc professional demolition hammer with sds max is the most powerful 11kg breaker from bosch it offers the best power to weight ratio thanks to a 1700watt motor and 23joules of impact energy with a weight of only 114kg in accordance with epta it offers the user low vibration of only 8 mssup2 due to the decoupled main and side handles and optimised hammer mechanism that minimises vibration where it originates typical in line design ensures optimum handling when working towards