Drill through wood, metal or masonry with this Bosch 18V EC Brushless Compact Tough 1/2" Hammer Drill / Driver (HDS182B). The EC Brushless motor gives a longer run life, while the Auto-Lock Chuck is designed for one-handed bit changes. It furnishes 442 In.-Lbs. of torque, up to 25,500 BPM and two drilling speeds (0-1, 700 RPM for high speed and 0 to 500 RPM for torque). Battery and Charger Sold Separately