Proprietary Mach-Blue coating is a super hard surface that retains sharper cutting edges and rduces heat build up resulting in faster cuts and exceptionally long drill life. Up to 100x more holes than titanium or black oxide bits. Includes (14) 1-in driver bits: u T15, T20 (2), T25 (2), SQ1, SQ2 (2), SQ3, SL6-8, PH1, PH2 (3); (10) 2-in driver bits: T15, T20, T25(2), SQ1, SQ2, PH1 (2), PH2 (2); and a 3-in magnetic bit holder.

Features:

• 70x longer life than standard impact rated driver bitsIMPACTiveâ„¢ alloy tool steel torsion zones actively flex to dissipate peak impact forces