2Pcs T40 Security Torx Bit 1/4" Hex Shank 4" Long Tamper Resistant Star Bits

1. The tamper-resistant star bit is made of heat-treated S2 steel, hardness up to HRC58-60, with high strength and wear resistance, anti-bending, anti-breaking, not easy to deform, and durable.2. The tamper-proof Torx drill bit adopts a magnetism design and can absorb screws vertically or tilted. The head is a hexagonal plum blossom shape with a hole, which can make close contact with the screw, making disassembly and installation more stable and less likely to slip.3. The chrome-plated surface is bright and shiny, effectively preventing metal oxidation and corrosion, enhancing hardness and wear resistance for better scratch resistance. Each tamper-resistant screwdriver bit is clearly engraved with the model for easy identification.4. Magnetic star bit head has higher torque and is magnetic, making it easier to remove and install screws in a small space. It is suitable for furniture assembly, mechanical equipment installation, automobile maintenance, home DIY projects, homemade furniture, architectural woodworking structures, etc. Widely used in manual electric screwdrivers, drills, and electric drills.5. Check whether it is firmly installed on the power tool before use. Keep it away from high magnetic and high-temperature environments when storing it to avoid affecting the magnetic effect.