Features: *Using the advanced alloy steel, the overall induction hardening, not easy to wear. *It is useful to operate electronic device, perfect for electrician, mechanic and repair work. *Standard shank diameter, 6.35mm on the opposite side of the hexagonal shank, 1/4 standard shank diameter, suitable for all kinds of pneumatic screwdrivers, electric screwdrivers, and rechargeable screwdrivers. *The kit is equipped with a 1/4 inch socket wrench adapter extension. Specifications: Product Name: Torx Screwdriver Bit Material: Alloy Steel Surface treatment: sand blasting Color: Grey Length: 25mm / 0.98Inch Hex Shank: 6.35mm (1/4Inch) Bit Size: T5, , T7, T8, T9, T10, T15, T20, T25, T27, T30, T35, T40, 1/4Inch Adapter Extension rod Suitable for: All kinds of pneumatic screwdrivers, electric screwdrivers, and rechargeable screwdrivers. Quantity: 14pcs set Package Included: 13 Torx Screwdriver Bits 1 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. _x000D_