Variable speed 0-750rpm. 1 gear. Reversible. Maximum capacity wood 25mm and steel 10mm. 24 torque clutch for perfect screwdriving into a variety of materials. Maximum torque 11Nm. 10mm keyless chuck. Supplied with a 12 volt detachable 1.2Ah NiCad battery and 3 hour charger. Spring loaded slide pack battery system form quick and easy battery change and a more secure fit. Manufacturer's 2 year guarantee.