Features: *1/2' Socket Adapter 12 Point Screwdriver bit. *Used in 1/2' Electric wrench, Ratchet wrench. *Widely used in home DIY, carpentry, auto parts, specializing in machine repair and so on. Specifications: Product name: Socket Adapter Material: CR-MO Color: Black Head: 12 Point Drive: 1/2 inch(12.7mm) Length:(Approx.) 78mm/3' Size:(Optional) M5, M6, M7, M8, M9, M10, M11, M-12 , M13, for M14, M15,, M17, M-18 , M19 Suitable for: 1/2' Electric wrench, Ratchet wrench Quantity: 1pc Package Content: 1 Socket Adapter Note: 1.Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data.