Makita Impact XPS Impact Bit Set 60 Piece New From the blue water to Size:US12 From the blue water to the smallest mountain creek The battery is removable Bits last up to 90X longer than standard impact bitsPrecision machined tips provide a superior full contact fit for improved holding power and longer lifePulse Torsion Rings help to disperse impact energy through the torsion zone and off of the bit tipOptimized Torsion Zone geometry facilitates an ideal transfer of impact energy for improved bit lifeUnique steel composition is masterfully engineered for extended life compared to S2 and S6 alloysUniquely calibrated heat treating process for added durabilityMatte Nickel surface for best in class corrosion resistance12 sided bit collar for use with the Impact XPS® Mag Boost sleeve for added holding powerEngineered to withstand the extreme power of high torque impact drivers and to last longer than standard impact bitsFor use with high torque impact drivers and driver drillsMag Boost makes any power bit magneticMagnetic Nutsetter features a lobular design that drives along flats to reduce rounding of hex fastenersInsert Bit Holder features a two piece design engineered to allow the torsion technology to fully activateSocket Adapter features chamfered edges of square drive end allow easy installation socket