This upgraded dual-ended screwdriver bit set is designed to simplify your fastening work. Each bit features a step hex shank compatible with 2mm to 8mm hex screws on one end, paired with either Phillips or slotted flathead tip on the other. Crafted from premium S2 alloy steel with heat treatment and built-in strong magnetic tips, these long screwdriver bits deliver outstanding hardness, wear resistance and stable screw holding performance. Perfect for furniture assembly, electrical maintenance, machinery repair, woodworking and all home & professional DIY projects. ✅ Innovative Step Hex Design | One Bit Fits 7 Hex Sizes (2mm–8mm) No more frequently switching multiple hex sockets! The stepped hexagonal structure securely fits 2/3/4/5/6/7/8mm hex head screws, drastically cutting down tool replacement time and streamlining your repair workflow. ✅ Dual-End Multi-Functional Structure Each bit combines a universal step hex driver end and a Phillips / slotted flathead screwdriver end. One single bit handles hex, cross and flat screws to cover most daily fastening and disassembly scenarios. ✅ Strong Magnetic Tip Prevents Screw Dropping High-strength built-in magnet firmly locks screws in place during high-speed drilling and tightening, effectively avoiding slipping, dropping or losing tiny screws, especially ideal for narrow, hard-to-reach working spaces. ✅ Premium S2 Alloy Steel & Heat-Treated Durability Whole bit undergoes strict quenching heat treatment, featuring high hardness, strong torsion resistance and excellent wear-proof performance. It resists bending, chipping and abrasion even under frequent heavy-duty impact and high-torque operations. ✅ 6-Piece Complete Versatile Set Includes 3 Phillips dual-ended bits + 3 slotted flathead dual-ended bits, fully meeting diverse fastening demands for home DIY, appliance repair, automotive maintenance, woodworking and electrical installation.