Bosch PSR 14.4, Pistol grip drill, Keyless, 0.984" (2.5 cm), 0.394" (1 cm), 12 N⋅m, 28 N⋅m Bosch PSR 14.4. Product design: Pistol grip drill, Chuck type: Keyless. Drilling diameter in wood (max): 0.984" (2.5 cm), Drilling diameter in steel (max): 0.394" (1 cm), Maximum torque (soft applications): 12 N⋅m. Power source: Battery, Battery voltage: 14.4 V. Weight: 3.31 lbs (1.5 kg)