Features: 8piece 150mm/5.91” Length torx screwdriver set in the following size: tamper proof torx bit of T8, T10T15, T20, T25, T27, T30, T40 Made from sturdy S2Steel, which has high hardness and high torques. Surfaces adopts special anti-rust surfaces treatments, can be used for a long time. The screwdriver drill bit tip has a strong magnetic, which is convenient for adsorbing screws and improving work efficiency. Each edges can be accurately locked screw, keeping the screws from slipping and making the operation more convenient. 6.35mm standard shank, suitable for electric screwdriver, manual screwdriver, electric drill, group general tool, air and other any standard bit holder. Specifications: Material:S2Steel Length:Approx.15cm/5.91in Screwdriver Bit:T8, T10T15, T20, T25, T27, T30, T40; Package Includes: 1set/8pcs Screwdriver Bit note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.