Torx Head Size: T8Hex Shank Size: 1/4"Overall Length: 65mm (2.56")Special Design: Torx Head without HoleMaterial: S2 SteelFinish: Black PhosphateHardness: HRC59-61 (Recognized stable hardness is around HRC60.)Color: Black + OrangePackage Content: 1pcs x Torx Head Screwdriver BitTorx head drill bit is made from specially heat-treated S2 steel for superior strength, hardness and durability. The black phosphate coating provides corrosion resistance and reduces friction for smoother operation and longer screwdriver bit life.The tamper proof 6 point star head of the screw driver is magnetized for easy use. Torx head driver with strong magnetism can stably absorb the screw vertically or obliquely, making it easy to fix the screw, especially in a small space.