You are Buying a brand New And Factory Sealed 14PC Power Nut Driver Drill Bit Set Socket Bit Adapter metric SAE Socket for Wrench Screw 1/4" Driver Hex. nut drivers includes: SAE: 1/4,5/16,3/8,7/16,15/32 1/2in. Metric: 6,8,10,11,12 13mm ; 2in. bits: 1/4in. PH2 Fits most powered corded or cordless drills. Strong inner Hexagon sleeve (with magnetic!!) Anti rust, anti slip, flexible. Mounted on a black clip, easy to use and storage Applicable for installing in those hexagon tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, pistol drill, manual screwdriver, etc. It's widely used in household DIY, auto parts, woodworking, professional machine repairing, etc.