Production Name: 1/2" SDS Drill Chuck for Impact Driver(2-13MM),Fits Bit: 1/13" - 1/2"(2-13mm),Suit for: Standard Impact Driver,Shank Type: SDS Plus Shank 1/2-20UNF Very Convient: With installed 1/2" Drive by 1/4" SDS adapter, very easily transform power impact wrench to a drill,save your time and energy Durable: With high precision threaded and tapered tightly with rust-resistant Cr-coated body and sleeve electrophoretic enameling coating,it is very durable Widely used for heavy duty drill work as to hard material such as drill hole on wall or stone Include: 1 set drill chuck with adapter