General description The Dewalt DCH172N 18V Ultra Compact SDS Brushless Hammer Drill is a class-leading tool designed for trade professionals and home DIY users. It features fast drilling speeds and low operational vibration, providing a professional feel and finish to each job. Its reduced size and weight allow for greater access to awkward spaces, while the LED work-light ensures bright working conditions in low-light environments. The tool is supplied as a single unit with a side handle and belt hook. Technical specifications Voltage: 18V Impact Energy: Class leading Operational vibration: 8.8 m/s² Weight: Ultra compact and lightweight Battery compatibility: 2Ah/5Ah 18V batteries Modes: Rotary hammer and rotary only Compatibility and accessories Includes Tstak Carry Case Keyless Chuck SDS Chuck Adaptor 17 Piece SDS Chisel Set + Tool Roll SDS Set Sizes: 5 x 110mm, 5.5 x 110mm, 6 x 110mm, 6 x 160mm, 7 x 160mm, 8 x 110mm, 8 x 160mm, 8 x 210mm, 10 x 110mm, 10 x 160mm, 10 x 210mm, 14 x