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 tighten long threaded nuts, greatly increasing your productivity. The 1/2inch hexagonal connection is designed to be compatible with drivers and drill drivers, and automatically tightens, saving you time and effort. Chrome Vanadium Steel Material: This Hollow Sleeve is made of Chrome Vanadium Steel, which is strong, stable and can be used for a long time. Efficient: Experience automated fastening like never before with our Hollow Socket set, saving time and effort on every task. Product name:Hollow Socket Size:Pole length 30cm Colour:As Shown Material:Metal Package Contents: 1 x Rod 2 x Adapters 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.