General description CCYKXA Hand Screwdriver Sets include 11 pieces of hex shank screwdriver bits, each 100mm long, designed for precision and durability. The set features a variety of Torx sizes ranging from T6 to T40, along with a 6.35mm diameter quick change bit holder, making it suitable for various DIY tasks. Technical specifications Number of pieces: 11 Length of bits: 100mm Torx sizes: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 Bit holder diameter: 6.35mm Compatibility and accessories Compatible with manual screwdrivers, electric screwdrivers, and pneumatic screwdrivers Can be used with any 1/4 inch hex shank electric drill Usage Ideal for home DIY projects Suitable for auto parts repair Applicable in construction sites