Overhead Fastening: 1/2 inch hexagonal connection designed for compatibility with impact drivers and drill drivers, simplifying the fastening process. Saves time and effort. Tough Material: The product is made of chrome vanadium steel, which is tough and rust-free, allowing for long term use and fewer replacements for the product. 360 Degree Swivel Adapter: We offer a 360 degree swivel rod adapter that not only helps you with ceiling fastening jobs, but also allows you to install nuts in hard to reach areas. Lenient Interior: Smooth, lenient hollow sleeve interior prevents shaft galling and damage to threads, making tightening and unclamping easier. What You'll Receive: The package includes one 9/16 inch (12 inch) hollow socket, one 360° rotatable 1/2 inch impact-grade socket adapter with 1/4 inch hex shank, and /2 inch impact-grade socket adapter with 1/4 inch hex shank; 1/4 hex shank design attaches to most power drills. Our hollow sockets can be used with power drills to quickly