The Makita DHR171 is designed for ease of use with a one touch sliding chuck and variable speed control. This 17mm cordless rotary hammer drill will drill through concrete up to 17mm, steel up to 10mm and wood up to 13mm. The brushless motor is precision engineered to be up to 50% more efficient than a comparative model. This means a fully charged 18v lithium-ion battery will last almost twice as long as a product running on a standard motor. With its compact design and vibration absorbing housing the DHR171 is lightweight at only 2.8kg net and being powered by an 18v LXT Li-ion battery means the DHR171 is cross compatible with the entire Makita LXT battery range. Features & Benefits • Brushless motor • One touch sliding chuck for easy bit installation and removal. • 2-mode operation: Rotary only and Rotary hammer • Electric brake • Variable speed control by trigger • Constant speed control • Forward/reverse rotation • LED job light • Compact and lightweight design • Vibration absorbing housing Specifications • Battery Type: Lithium-ion • Voltage: 18v • Capacity in Concrete: 17mm • Capacity in Steel: 10mm • Capacity in Wood: 13mm • Impact energy: 1.2J • Shank: SDS Plus • Impacts per Minute: 0-4,800ipm • Noise sound pressure: 86dB(A) • Noise sound power: 97dB(A) • Noise K factor: 3dB(A) • No Load Speed: 0-680rpm • Vibration K factor: 1.5m/sec² • Vibration: Hammer Drilling: 9.0m/sec² • Vibration: Drilling into metal: 2.5m/sec² • Net weight: 2.8kg Contents • Makita DHR171RTJ 18v LXT Cordless Brushless SDS Hammer Drill • No Batteries • No Charger • No Case • Side Handle • Depth Stop