MILWAUKEE SHOCKWAVE Impact Duty St

Most durable, fastest holes, A dual spiral flute combined with the Rapid Strike Tip delivers up to 2X faster holes than competitive impact step bits, With an OPTIMIZED SHOCKZONE and a titanium aluminum nitride coating, these bits last 5X longer than competitive impact step bits, These step bits have best in class performance in impact drivers and the versatility to be used in drills, Titanium aluminum nitride coating Rapid Strike Tip provides fast and accurate starts, Laser engraving for easy size identification, Six different sizes, up to 13 steps