GMC Carbon Fibre Magnesium Rotary Hammer Drill (1500W) - 920405 Packing a powerful 3.5 Joules of impact force, this cutting edge carbon fibre/magnesium drill delivers maximum strength and durability in a lighter power tool. 3 modes of operation, including stop rotation for removing tiles and breaking up concrete, provides exceptional versatility, with the SDS-Plus fitment system for quick and easy bit change. Safety features include built-in clutch and Power GLO mains indicator.