ITEM NAME:1.5-10mm Drill chuck driver converter 3/8''24UNF quick connect with key adaptor- @media screen and (max-width: 600px) .mobiledesfromibay { display:block; width: 350px;.Mount: 3/8" - 24UNF. Chuck capacity range: 1.5mm - 10mm(1/16" - 3/8"). Turns any cordless power screwdriver into a drill or grinder to quickly switch tasks and keep the job moving. Easily change from fastening to drilling with 1/4" hex quick connect.