Constructed for screwing and drilling in tight spaces and difficult to access areas. For use with impact drivers and cordless drills. Handle design reduces vibration for added control and comfort. 65mm head length and 38mm head depth for accessibility. Metal gearcase with quick bit ejection for durability and convenience. Long-life gears, impact-ready for durability on the toughest jobsites. Strong earth magnet retains fastener for easy one-handed use.