Comprehensive Torx Specifications: This set includes 11 essential tamper-proof Torx sizes (T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40), perfect for disassembling and assembling precision screws in various electronic, mechanical, and appliance applications.Extended Reach for Tight Spaces: The 7.9-inch (200mm) long shaft is designed to access deep recesses and narrow areas in computer cases and other tight spaces, effectively addressing the challenges posed by confined environments.Enhanced Durability and Torque: Made from high-hardness S2 alloy steel with rust resistance treatment, these bits offer superior bending and torsion resistance. The precision-engineered triangular head ensures a tight fit, minimizing screw slippage and bit wear.Efficient Operation with Strong Magnetic Grip: Equipped with a strong magnetic tip that securely holds screws, preventing them from dropping. Each bit is clearly marked with lazer-engraved specifications like T10/T20, facilitating quick and easy identification.Universal Compatibility: Features a standard 1/4-inch hex shank, making these bits suitable for use with various tools including electric and manual screwdrivers, drills, impact drivers, and pneumatic tools, ideal for both professional maintenance and DIY projects.Color: As ShownMaterial: Tool SteelPackage Contents:11pcs 200mm Extra Long Torx Bit SetOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.