Neiko 30237A 3/4" Female x 1/2" Male Impact Adapter,Ridgerock Tools Inc.,30237A" /> Engineered to be used with impact drivers; transform your 3/4" drive size to 1/2" Impact adapter is constructed from strong chrome vanadium steel that is strong and dependable for all your jobs Ball detent locks securely onto sockets securely and prevents it from being dropped for undisturbed work Special chamfered design makes it so there is a secure fit and the through hole feature allows use of locking pins and rings Long lasting corrosion resistant black oxide finish provides a quality adapter that will maintain its quality throughout multiple uses