10x life over standard impact bits ; Xtended Torsion Zone absorbs high torque of new impact drivers ; Precision-engineered tips provide a tighter fit & less cam out ; Heat-treated manufacturing results in a stronger bit ; High-visibility sleeve with laser-etched markings for user convenience; Kit includes: ; Insert bits: 2 P1, 5 P2, 3 P3, P2R, R1, T15, 2 T20, 2 T25 & T30 ; 2″ power bits: 3 P2, P3, 2 R2 & 2 T25 ; P2R2 3.5″ power bit ; 1/4″ Impact Tough(TM) magnetic nutsetter;