hardness: These screwdriver bits have a hardness of up to 62HRC, providing wear and damage resistance. They are designed to withstand heavy use and are built to last. Wide compatibility: Compatible with screwdrivers, electric screwdrivers, and hand drills. Suitable for a range of screwdriving tasks, delivering efficient and reliable performance. Enhanced length: Longer design helps absorb torque, reducing the risk of damage during use. Enables easier penetration through materials such as steel plates and wood, including when working with special nails. Magnetic feature: Magnetic tips attract and hold nuts and bolts, improving work efficiency and helping prevent loss of small fasteners during screwdriving operations. Use scenarios: Assembling flatpack furniture and cabinetry, where longer bits reach through panels and provide steady torque handling. Mounting brackets or hardware to steel plates or wooden structures, taking advantage of the extended length for better access in tight spaces. Working with small fasteners in restricted or awkward areas, where the magnetic tip keeps nuts and bolts securely in place during drive.