Faithfull Pozi S2 Grade Steel Screwdriver Bits is a screwdriver bit sets designed for practical everyday use. Key product details include These Faithfull professional 1/4in Hex Drive Pozidriv Screwdriver Bits are manufactured from high strength, heat-treated S2 grade steel. Additional features include Bits are shock and wear resistant and feature precision machined tips to provide an optimum fit, helping to prevent screw stripping and cam-out and provide a long working life. Further specifications include Additional product details are provided in the listing.