Milwaukee 48-89-0017 90-Piece Drill and Drive Set Drill bits can be used to drill metal, wood, and plastic Driving bits crafted from high-grade S2 tool steel, helps provide excellent wear resistance Quik-Lok bit system allows change of drilling and driving accessories quickly and easily Includes Thunderbolt black oxide drill bit set ranging from 1/16-inch to 1/4-inch bits Also includes magnetic drive guide, wide assortment of Phillips, square recess,Torx, Allen/hex