[Stainless Steel Material]Our cordless drill adapter is made of high quality stainless steel, which has excellent wear resistance and corrosion resistance. Compared with aluminum alloy, stainless steel has higher hardness, is not easy to deform, and is more robust and durable. [Fit for]This cordless drill adapter kit fits for Top Wind trailer jack crank handle. [Specification]The shaft hole of this cordless drill adapter is 1/2in and the thru hole is 1/4inch. It works with a 1/2inch drive socket adapter. This cordless drill adapter can also work with a 1/2inch driver ratchet or bresker bar. [Easy to Use]This cordless drill adapter is manufactured to meet specifications for fit, form and function. Put it directly on the 1/2inch shaft and secure it, then drive it with an electric drill. It is fast and convenient, saving both time and energy. Colour:Silver Material:Stainless steel Package Contents: 1set x Cordless Drill Adapter Only the above package content, other products are not included. Note: Light reflection 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.