- [Compatibility] This drill-screwdriver adapter set is specifically designed to fit the crank of the Top Wind trailer jack, ensuring a perfect fit and seamless performance. - [Specifications] The shaft hole size of the adapter is 1/2 inch, while the pass-through hole measures 1/4 inch. The adapter works smoothly with a 1/2-inch socket wrench and can also be utilized with a 1/2-inch ratchet or breaker bar for added versatility. - [Material Quality] Our drill adapter is made from high-quality stainless steel, offering exceptional wear resistance and corrosion resistance. Compared to aluminum alloys, stainless steel provides greater hardness, does not easily deform, and is significantly more robust and durable. - [Practical Use Scenarios] 1. Trailer Maintenance : Easily raise or lower your trailer jack during routine maintenance or while loading and unloading. 2. Towing Convenience : Quickly adjust the height of your trailer hitch when connecting to different vehicles, ensuring a secure and safe towing experience. 3. DIY Projects : Perfect for various home projects that require lifting or adjusting heavy loads, making it an essential addition to your toolkit. With its sturdy construction and versatile application, this drill-screwdriver adapter set is an essential tool for anyone working with trailer jacks or in similar settings. Choose reliability and performance for your heavy-duty needs.