18V IMPACT DRILL + 1 X 1.3AH LI-ION BATTERY, 3-5H CHARGER The two-speed gearbox means the high torque in first gear is sufficient to drill in metal with a twist drill bit with a maximum diameter of 12 mm. In second gear, with the impact function activated, it can make holes in brick up to 10 mm in diameter and in concrete up to 6 mm in diameter. The tool also allows drilling in wood with flat drill bits up to 32 mm and driving screws up to 150 mm long and up to 5 mm in diameter. The Sthor 78974 impact driver draws power from modern 18V, 1.3Ah lithium-ion cells. They are free from the disadvantages of older nickel-cadmium designs – they are rechargeable, can withstand several thousand charging cycles, and are more efficient in terms of current. The tool features infinitely variable motor speed control using the trigger switch, as well as a torque adjustment knob. EAN: 5906083026720