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.