Wide Compatibility: The 1 / 4 " shankdrill screw bit set is not only work with driver, but also screwdriver bit set perfect for any regular drill, electric and hand screwdrivers, power drills, corded drills, cordlessdrills, cordlessdriver and more The bit set are widely used in electronics repairs, deck construction, framing installation and plywoodsubfloor installation and so on 10 Size Screwdriver bits set: 5 / 64 3 / 32 7 / 64 1 / 8 9 / 64 5 / 32 3 / 16 7 / 32 1 / 4 5 / 16； 10 in 1 professional size security bits set.They feature a standard 1 / 4 " bit drive size which for daily use S2Steel Bits： Screwdriver bits set S2high shock-resisting tool steel which is a hard and abrasion-resistant alloy metal.Can withstand repeated use and has along life Strong Security Bit Set Magnetizable security screwdriver bit set compare with others driver bit set are more to pick up and hold screws easily with no sliipping or stripping, Manufacturer: LiRRvb