DeWALT DCD710D2. Drilling diameter in steel (max): 1 cm, Drilling diameter in wood (max): 2 cm, Maximum torque (hard applications): 24 Nm. Power source: Battery, Number of batteries included: 2 pc(s), Battery technology: Lithium-Ion (Li-Ion). Weight: 1.1 kg, Width: 50 mm, Depth: 185 mm