WORKPRO 10PCS Square Drive Bit Set, Magnetic Impact Screwdriver Bits

Made of premium heat treated S2 alloy steel, with surface phosphated black, our screw driver bit set offers exceptional longevity for industrial-grade applications, stand great pressure and high torque, CNC Precision machined tip and a hardened core strengthen each bit, reducing fracture risk. Manganese phosphate surface treatment prevents rust, ensuring top condition for your tools, Strong magnetic square bit tips maintain magnetism over repeated use for precision work or picking up screws in long, narrow and complex spaces. 1/4 quick change hex shank gives them high adaptability, 1/4" hex handle can be used with electric/hand screwdriver, sockets, drill driver kit, ensuring compatibility with a wide range of applications in home repair, automobiles, electronics and woodworking, This set includes 10pcs of 2. 3" long square bits S0, S1*3, S2*3, S3*2, S4, offering a wide range of options for various applications, Comes with a plastic storage box for easy portability and organization, help you easily pick up screws and protect bits from damage.