Features: Streamlined anti-skid handle, comfortable grip, compact, easy to carry. Can be disassembled various shapes nuts, screws, hooks, lag screws, and bolt heads, etc. Suitable for household DIY, w more→oodworking, auto parts, construction site, professional machine repairing, etc. Applicable for installing in those hexagon tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, pistol drill, manual screwdriver, etc. Specifications: Shank size(approx.):1/4inch Material: Chrome vanadium steel Size: 5 /6 /7/ 8 /9 /10/ 11/ 12/ 13 mm Package included: 9 x Socket Adapters Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the