Screw Driver Bits: 30PC-1 inches(T7,T8,T9,T10,T15,T20,T25,T27,T30,T40)X2, H4*1, H5*2, H6*2, H3/16"*2, H1/4"*2, H1/8"*1. 40PC-2inch (PH1*2, PH2*6, PH3*2, T10*2, T15*2, T20*5, T25*5, T27*2, T30*2, T40*2), 1PC-2.5inch bit holder. The storage box is customized for bits, you can take it easy to anywhere or hang it up when you don't use it
Impact Rated Bits: Impact Shock Absorbent Zone stands up to impact drivers. It can be handled a new generation of higher torque impact drivers
Quality Assurance: This batch of head made of S2 high quality steel material, it owns the features of high hardness and good toughness and resistance through strictly heat treatment, durable and suitable for any industrial use
Precision Tips Head: Precision-engineered bit tips, deliver a better fit and less cam-out, each edge can accurately lock the screw, stabilizes without slipping and improves work efficiency. Avoid damaging the screw and screwdriver head
Wide Range of Uses: Made to fit 1/4 In. hex impact drivers drill screw bit set is not only work with impact driver, but also magnetic screwdriver bit perfect for any regular drill, electric and hand screwdrivers, power drills, corded drills, cordless drills, cordless driver and more