The MILWAUKEE SHOCKWAVE Impact Duty13PC Driver Bit Set is engineered to be the Most Durable, Best Fitting Driver Bit Driver Bits on the market. TheWEARGUARD TIPdelivers increased wear resistance, which protects the impact bit's fit over the life of the bit. TheSHOCKZONE is optimized for each tip type andlength of Driver Bit in the set to absorb peak torque and prevent breaking. The Driver Bit Driver Bits haveCUSTOM ALLOY76for a customized steel and heat treatmentper tip type to extend the life of the user's Driver Bit Driver Bits, providing up to 50X life versus other impact Driver Bit Driver Bits on the market. The MilwaukeeSHOCKWAVE ImpactDutyDriver Bit Driver Bits are built to provide users with extreme durability for the most demanding applications.The Driver Bit set is organized in a customizable accessory casedesigned for use in PACKOUT.