Bosch 680W 240V Corded Keyless chuck Hammer drill PSB680RE. This Bosch corded hammer drill is best suited for sustained or heavy-duty drilling in hard materials with a single speed variable gearbox providing greater torque versatility. It has a maximum drilling capacity of 14mm in masonry 30mm in wood & 12mm in metal. It's also supplied with a auxiliary depth stop & carry case for added convenience.