Hex Screwdriver Bit Set: 1 inches (1.5/2.0/2.5/3.0/3.5/4.0/5.0/6.0/7.0/8.0mm)x2,2 inches (5.0mm)x1 driver bits, they're all have a customized Organizer Sleeve
Impact Allen Wrench Bits: Impact Shock Absorbent Zone stands up to impact drivers. It can be handled a new generation of higher torque impact drivers
S2 Alloy Steel: 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: 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,hand screwdrivers and more