Cordless Hammer Drill 4 Modes Handle Adjustable Rechargeable Brushless Hammer Drill for Wall Concrete Item Type: Cordless Hammer Drill Material: ABS, Metal Capacity: Concrete: 24 mm (15/16in) Steel: 13 mm (1/2in) Wood: 27 mm (1-1/16in) Impact Number (BPM): 0 to 4700 Number of Revolutions (RPM): 0 to 950 Sound Pressure Level: 89 dB (A) Sound Power: 100 dB (A) Vibration Level Drilling Into Concrete: 13 m/s ² Drilling Into Metal: 2.5 m/s ² Chisel: 11 m/s ² Vibration Coefficient Drilling Into Concrete: 1.5 m/s ² Drilling Into Metal: 1.5 m/s ² Chisel: 1.5 m/s ² Applicable Drill Handle: For SDS PLUS Applicable Battery: 18v lithium ion battery (without) Applicable Battery Model: For BL1815 BL1815N BL1820 BL1820B BL1830 BL1830B BL1840 BL1840B BL1850 BL1850B BL1860B, etc.