Store the screwdriver bit in a dry place to prevent rust and maintain its performance. HARFINGTON 2pcs H2.5 Hex Head Drill Bit Wrench 2.5mm Metric Flat Tip 1/4 Hex Shank 200mm (8) Long Magnetic Hexagonal Screw Driver Socket Industrial Screwdriver... The larger the value, the larger the head, and the smaller the value, the smaller the head. Size - Metric flat hex head size: H2.5 (2.5mm); hex shank size: 1/4; overall length: 200mm (8); hardness: HRC59-61 (The recognized stable hardness is around HRC60.). Precision CNC machined hex head, precise appearance, reduces head wear during high-intensity tightening operations. Can accurately tighten screws without damaging screws and hex bit socket. Material - Industrial grade hex flat tip screwdriver bit is made from specially heat-treated S2 steel for superior strength, hardness and durability, with a sandblasted surface for a textured effect for enhanced grip and corrosion resistance. Special torque buffer design, when the vibration generated during operation is absorbed by this part, the torque transmission is increased, achieving the effect of protecting the screwdriver head and extending the service life. Hex drill bit wrench specifically designed for driving screws into wood, metal, and other materials effortlessly. 1/4 drive hex shank bits can be used with electric screwdrivers, manual screwdrivers, electric drills, etc. The hexagonal head of the screw driver is magnetized for easy use. The H value indicates the size of the hexagonal head. Buy Natural 2 Gallon Bucket with Gasketed Lid ( White (Gamma), 20 Applications - Hex drill bit wrench specifically designed for driving screws into wood, metal, and other materials effortlessly. HARFINGTON 2pcs Double Split Shaft Collar for 6mm Shaft Set Features - The hexagonal head of the screw driver is magnetized for easy use. Hex Screwdriver 50mm /4 Inch Hex Head Drill Bit Magnetic For Torx Screwdriver Bits For T10 T40 B 5mm Drill Bit