1、EFFICIENT WORK: This cordless electric hammer drill is equipped with a powerful brushless motor, which greatly helps you improve work efficiency and easily drill hard materials such as concrete. The rechargeable electric hammer is suitable for professionals as a convenient tool for long term use. 2、ANGLE, MODES ADJUSTABLE: Using the mode knob, you can quickly switch to drill only, hammer only, hammer and drill, and chisel position adjustment (adjust the chisel angle before using). 3、APPLICABLE SCENARIOS: The hammer drill can help you easily handle the drilling of various materials, such as wood, tile, wall, concrete, granite, metal, broken wall, floor and brick. 4、ERGONOMIC HANDLE: The ergonomic handle can provide comfort and maximum thrust during any operation. The cordless electric hammer drill for concrete is equipped with 360 ° adjustable handle, which allows you to change the holding angle to reduce hand fatigue and improve working accuracy. 5、CORDLESS DESIGN: The cordless drill has no cable trouble, providing unlimited free of movement and many conveniences. 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. 1 x Cordless Hammer Drill 1 x Handle 1 x Manual 1 x Storage Box