DEWALT MAX IMPACT screw driving bits are engineered to last longer than standard bits. The Dual Torsion Zone transfers optimal torque for Impact Driver use, while the Optimized tip geometry provides maximum fit, helping to reduce wear, stripping and cam-out. 2.5 in. bits and longer are compatible with the 10X Magnetic Bit Sleeve, providing users with precise placement and screw retention. Insert (1 in. bits) achieve optimized fastener magnetism with the DEWALT MAX IMPACT Bit Tip Holder.