Bosch 11536VSR-RT 36-Volt Lithium-Ion 1-Inch SDS-Plus Rotary Hammer (Certified Refurbished) Intergral Clutch - helps minimize torque reaction Vario Lock Positioning- rotates and locks chisel into 36 different positions 3-Mode Selector - Rotation only, rotary hammer and hammer only mode Litheon Fast Charger - Charges 36V Batteries to 80% of capacity in 30 minutes Litheon 36V battery - the most advanced Lithium-ion battery available today - allows more battery charges, longer run time and more power, Up to 5X longer battery life than competitive Lithium Ion