ITEM NAME:3pcs Adapter Drill BIts Set Hex Shank 1/4" 3/8" 1/2" Impact Driver Tools YM Descriptio n Specification: Material: High Carbon Steel Colour: Black Size: 150 mm Product List: 3 * DRILL SOCKET Adaptor Converts any drill into a nut driver. 1/4" Hex quick release shank. 1/4", 3/8" & 1/2" Square socket drives. Overall length - 150mm. Spring ball socket retention. CRV Steel construction. Industrial black finish. Note: 1.Please allow a little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! 3pcs Drill Socket Adapter BIts Set Hex Shank 1/4" 3/8" 1/2" Impact Driver Tools.3pcs Drill Socket Adapter BIts Set Hex Shank 1/4" 3/8" 1/2" Impact Driver Tools. 1/4" Hex quick release shank. Product List: 3 DRILL SOCKET Adaptor. Converts any drill into a nut driver. We'd like to settle any problem in a friendly manner.