The D25052K pneumatic rotary hammer with a rating of 650 watts is ideal for drilling holes of up to 20 mm in concrete. A safety clutch protects the user from injury when the bit jams. The hammer mechanism delivers a single impact energy of 1.9 joules. The brush-ring design provides the tool with 100 per cent motor torque in both rotating directions. In addition, the device features a side handle equipped with an LED light.