Package Contents: you will get 6 pieces of keyless drill press chuck kits, useful tools to help you lock your accessories stably, saving your time and energy; Please attention that chuck can not be applied counterclockwiseMount: the drill chuck is 1/2 inch, and the capacity range is 1.5-13 mm, suitable for impact drills and electric driverQuick to Connect: the socket square converter kit can hold on most twist drill bits securely, can be applied to fix such as step drill bits, paddle bits or larger circular saw and more, contained with 3 different sizes and shapes of drill chuck extension that easier to quick connect to different driver tools, very practical in daily workingSturdy Material: drill converter conversion tool is made of good threaded and tapered tightly with rust-resistant coating body and sleeve electrophoretic enamel coating, applicable for heavy drilling operations, not easy to break or deform, supporting for a long time useWide Applications: the drill chuck adapter converter kit is quick for you to install it onto cordless power drill without the need for keys or extra tools to install the drill bits, widely applied for most impact wrench, wireless screwdriver, impact screwdriver and so on.Notes:displays.Contain pointed objects, please keep from children.Material: Metalcolour: blackPackage Contents:1 set x hex adapterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.