Snap-on's 1/4" hex drive micro-cordless impact driver with quick change chuck, No. CT661QC, can be used in hard-to-reach areas while offering durability and ease of use. Includes an ergonomic design with a cushion grip handle providing positive tool control with less fatigue. Its quick change chuck can be used on fender bolts, valve cover bolts and under the dash. Fits on 12 mm and smaller fasteners. Features forward/reverse cushion toggle style variable speed trigger, headlights to illuminate work area, built-in brake stops the tool from throwing sockets and fastener, over and under temperature protection keeps tool operating at peak efficiency, and more.