7Pcs PH1+PH2 Phillips Screwdriver Bit Set 2" 4" Long 1/4" Hex Shank Magnetic

Phillips head drill bit is made from specially heat-treated S2 steel for superior strength, hardness and durability. The black phosphate coating provides corrosion resistance and reduces friction for smoother operation and longer screwdriver bit life. Magnetic design, can stably absorb vertical or inclined screws and easily fix screws, especially in small spaces, making it easier to complete work. Special torque buffer design, precision CNC machined crosshead, can reduce head wear and extend service life during high-intensity fastening operations. Phillips tip screwdriver bit can easily screw into wood, metal and other materials. Screws can be tightened precisely without damaging the screws and screwdriver heads. 1/4" hex shank driver bits can be used with electric screwdrivers, manual screwdrivers, electric drills, etc. for electrical work, mechanical repair work, and furniture installation. Before operation, make sure the screwdriver bit is firmly inserted into the power tool chuck. Avoid excessive force when tightening the screw to prevent the bit from being damaged or slipping out. Adjust power tool speed and torque settings according to the material being processed.