Production Name: 1/2inch Drill Chuck for Impact Driver 1/2inch(2-13MM),Fits Bit: 1/5inch - 1/2inch(2-13mm),Suit for: Standard Impact Driver : With high threaded and tapered tightly with rust- -coated body and sleeve electrophoretic enameling coating,it is very Very Convient: With keyless design-drill chuck, easily lock bit or tools by hands,save your time and 3 Different Shanks - This 3 different types of adapter can easily convert your tool to a drill, suitable for multiple connecting needs; The 1/4inch hex adapter is for screwdriver, the 1/2inch square socket adapter for impact wrench and the SDS -plus adapter for hammer drill / rotary hammer Widely used for heavy duty drill work as to hard material such as drill hole on wall or stone, Weight: 0.4850169764 Pounds, Manufacturer: NONDK