The bosch gbh18vec professional cordless rotary hammer gives the user a perfect combination of power and weight this rotary hammer has a long runtime 153 holes 6 x 40 mm in concrete with one battery charge 40 ah thanks to the efficient bosch ec motor coupled with its compact design and low weight of only 26kg it is designed for more comfortable work it has the highest chiselling removal rate in its class at 12 kghour and the brushless bosch ec motor is compact dust protected lightwe