The Black & Decker BDCIM18N Impact Driver has a durable metal gear casing and delivers up to 155Nm of Torque for effortless driving and removal of screws and bolts. The driver has a compact, lightweight design that makes the drill easy to use over long periods of time. Its anti-slip soft grip provides additional comfort. Spring loaded slide system is durable and prevents dust ingress. Ideal for driving large bolts/screws without needing a pilot hole, removing rusty/old or damaged screws and driving self tapping screws straight into metal work. Bare Unit, No Battery or Charger Supplied. Specification Bit Holder: 6.35mm (1/4in).No Load Speed: 0-3,000/min.Max Torque: 155Nm.