Strong and strength cross screwdriver bit for demanding screw driving tasks Compatible with screwdrivers, electric screwdrivers, and hand drills, especially for screwdriver use hardness up to 62 HRC for wear resistance; longer length helps absorb torque and reduce damage Designed to penetrate steel plates, wood, and other materials with special nails Magnetized throughout for convenient adsorption and fixing of screws during operation Wear resistant and rustproof thanks to a phosphating black finish Specification Model: Nonslip Cross screwdriver Material: Alloy steel Size: 65, 70, 90, 150 mm Color: Black Bitsize: PH Quantity: 4 pcs Use scenarios 1) Assembling metal frames or cabinets that require torque and extended reach 2) Driving long wood screws or nails in wood and light metal applications, with torque absorption to reduce damage 3) Maintenance or installation tasks in tight spaces where magnetized bits help hold and guide screws for onehanded operation