The URREA 7656B Metal ball impact adapter is the one you need to get the job done. The metal adaptor features a spring-loaded pin drive, spring-loaded ball drive, through-hole drive, o-ring and pin needed. Total 2 15/16″. Female drive 1″. Male drive 3/4″. With this URREA 7656B Metal ball impact adapter, you will have an easier time on the job.