Ridgid R7111 Drill, 1/2-Inch VSR Heavy duty 1/2 inch keyed chuck  all metal design for added durability and positive bit retention 360 Degree auxiliary handle assembly  can be repositioned or removed with ease All metal gear case  for high strength and added durability Ergonomic two finger trigger  features full range speed control and molded soft grip design Durable 8 Amp motor with hardened steel gears  built to exact specifications for extended tool longevity