Rotary Hammer with SDS plus GBH 4-32 DFR, The GBH 4-32 DFR Professional is the most powerful tool within Bosch’s SDS plus corded rotary hammer category. Its 900 W motor delivers an outstanding 4.2 J of impact energy for the fastest chisel removal rates in Bosch’s SDS plus range. The rotary hammer is designed for durability, featuring a robust metal gear