Feature: *12-point screwdriver, optional size: M4, M5, M6, M7, M8, M10, M-12. *Made of high quality material, durable and practical to use. *High precision, high hardness and good workmanship. *Bits are magnetic that can be firmly fixed on screwdrivers. *Suitable for electric screwdrivers, manual screwdrivers, electric tools Exercises, air drills, etc. Specifications: Product Name: 12 Point Torx Screwdriver Bit Material: Alloy Steel Color: Silver Length: (Approx. ) 50mm/1.96'' Shank: 1/4'' (6.35mm) Hex Optional Size: M4, M5, M6, M7, M8, M10, M-12 Suitable for: electric screwdrivers, manual screwdrivers, electric tools Exercises, air drills, etc. Quantity: 1pc Package Included: 1 × 12 Point Torx Screwdriver Bit 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.single head, double head. Made of high quality material, durable and practical to use Brand new and high quality Good function and reliable to use We will ship it ASAP,when you place the order We provide perfect customer service, you can buy with confidence. If you have any questions about our products, you can feel free to contact us.