Bits last up to 90X longer than standard impact bits Bits feature precision machined tips, pulse torsion rings, an optimized torsion zone, and unique steel, combine to deliver improved overall performance and bit life Precision machined tips provide a superior full contact fit for improved holding power and longer life Pulse Torsion Rings help to disperse impact energy through the torsion zone and off of the bit tip Optimized Torsion Zone geometry facilitates an ideal transfer of impact energy for improved bit life Unique steel composition is masterfully engineered for extended life compared to S2 and S6 alloys Uniquely calibrated heat treating process for added durability Matte Nickel surface for best in class corrosion resistance 12 sided bit collar for use with the Impact XPS® Mag Boost sleeve for added holding power Engineered to withstand the extreme power of high-torque impact drivers and to last longer than standard impact bits For use with high torque impact drivers and driver-drills Magnetic Nutsetter features a lobular design that drives along flats to reduce rounding of hex fasteners Insert Bit Holder features a two-piece design engineered to allow the torsion technology to fully activate Socket Adapter features chamfered edges of square drive end allow easy installation socket Includes (2) 1-3/4" Magnetic Nutsetters, (1) 2-3/8" Insert Bit Holder, (25) 1" Insert Bits, (6) 2" Power Bits, (1) 1/4" Socket Adapter