Features -With drill chuck, can be used as a spare drill chuck handle. -Widely used along with various drill machines,milling machines,lathes,boring lathes and electric hand tools. -Tail hole is a cone hole, drill chuck than the average precision is higher. -Is a drill chuck, hollow hammer drill professional connection tools, with a more solid connection performance. Note:Due to the manual measurement,there might be some error. Specifications Fit For:Keyless 1/32"- 5/8" Lathe Drill Chuck 1-16mm Color:silver Materials:45 steel Standard:MT3-B18 Package included: 1 x drill chuck arbor