Specifications: High quality, made with alloy steel. Special heat treatment, super hard wear-resisting, life is twice as long as ordinary screwdriver. It is an ideal industrial screwdriver widely used in industry and household. Applicable for electric screwdriver, hand screwdrivers, electric drill, air drills, etc. Item Name: Screwdriver Bits Material: Chrome-vanadium Steel Type of Head: Torx Size: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40 Features: Durable, Torx Type, Hand Tools Overall Length: 75mm/2.95", Size: 8cm x 3cm x 3cm/3.15" x 1.18" x 1.18" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 11 x Screwdriver Bits