The RS PRO Phillips Screwdriver Bit (PH2) is a standard driver bit from RS PRO's accessory line, designed for use in power tools and manual screwdrivers to drive Phillips-head fasteners in assembly and maintenance applications. Critical verification: confirm compatibility with your bit holder or tool chuck, as RS PRO bits come in various shank types (1/4" hex, 2mm hex, etc.) not specified in the part number alone.