Product Description Get a fast, long lasting rotary hammer with the Bosch bulldog extreme 1 in. Rotary hammer. It features a multi-function selector that quickly shifts between rotation only, rotary hammer and hammer only modes for optimal versatility. It also has a variable Speed reversing trigger for accurate bit starts and simple removal of fasteners and bound bits. From the Manufacturer The totally redesigned Bulldog Xtreme outlasts the competition in both speed and performance. Multi-function selector has 3 modes of operation: rotary hammer, hammer-only and rotation-only mode. Vario-Lock Positioning rotates and locks chisel into 36 different positions to optimize working angle. The patented rotating brush plate provides equal power in forward and reverse. Cord turret has a 35-degree pivot for added flexibility and longer cord life. SDS-plus bit system tool-free bit changes with automatic bit locking, dust protection and maximum impact energy transfer rate. Variable-speed reversing trigger for accurate bit starting as well as removing fasteners or bound bits. Integral clutch helps minimize torque reaction. The 11255VSR has a comfortable D-handle grip design for greater control, especially when drilling overhead or downward.