The high-torque bits are available in a variety of sizes High-precision cutter head is straight and concentric without slipping Strong magnetic adsorption The magnetic force is more durable The 800 screw does not slip The high-precision front end, the bite is tighter, and it is not easy to slip and collapse The locking screw engages tightly High hardness, strong magnetism, high fit, impact resistance, cushioning, straight and non-shaking, long-term use, effectively reduce the phenomenon of bit deviation and slippage Due to different batches, the two packages are shipped randomly