The Total TRHLI201681 cordless hammer drill uses a 20V battery, which allows it to work better, speeding up concrete drilling. Like other concrete drilling equipment, Total TRHLI201681 is also capable of drilling holes in common materials such as wood, concrete and iron. Specifications: Brand: Total Model: TRHLI201681 Type: Rotary Hammer Voltage:20V No-load speed:0-850rpm Impact rate:0-5100bpm Impact energy:1.5J Max drilling capacity:Φ16 in concrete SDS plus chuck system Integrated LED work light 3 Pcs drill bits 1 Pcs 2.0Ah battery pack(TFBLI20011) 1 Pcs charger(TFCLI2001) Charge volts: 220-240V~50/60Hz Packed by carrying case Weight: 3.3kg Dimension: 48 x 9.6 x 32 cm