Set contains all common screwdriver bit sizes, most common drill bit diameters, and nut setters in a large tough case for easy storage and portability. Includes: Phillips, square recess, slotted and star bits with 1' and 2' power bits and selected 3-1/2' bits; black oxide drill bits from 1/16' to 3/8' diameter; socket adapters for 1/4' hex to 1/4' and 1/4' hex to 3/8'; magnetic tray and storage case for loose accessories.