The Einhell TE-HD 18/20 Li-Solo Cordless Rotary Hammer includes 4 functions in one device: drilling, hammer drilling and chiselling with and without fixing. The pneumatic impact mechanism ensures a powerful 1.8 joules impact force and a maximum speed of 4750 rpm and a idle speed of 1200 rpm. The rotary hammer drills holes with a diameter of up to 30 mm in wood, 20 mm in concrete and 13 mm in metal. Requires 1x 18V Einhell Power X-Change rechargeable battery.