Utility knife, etc. Screwdriver, electric screwdriver, air drill, air drill, hand screws, six tools suitable for conversion ratio, , , shock absorber and addition and reduction kits, universal joints, washers, kit kits, box sizes. Colorful Designs - Color wheel You can easily choose different or different. Permanent pack included - 3 pieces: 1/4" , 3/8, 1/2", each with a replacement 1/4" hex attachment. Heavy-duty spring-loaded ball bearings hold the rail to the ground. Uses: Ideal for n any toolbox Target range to your satisfaction Very, very similar to a manual screwdriver with pliers Includes 13 of the most common bit sizes 1/4", 3/8" Gives you a choice of versatility/convenience either as a tool. MaterialQuality 6150 HP.Nadium heat-treated chrome steel, high surface texture, high texture, good structure, sandblasting has good fatigue resistance Main Features: 1. Assemble the drill and screwdriver socket 2. The positioning ball to fix the socket so that it fits perfectly without slipping 3. 1/4" hex shank prevents stripping during high speed drilling operations 4. Chrome vanadium steel heat treated for normal duty and impact use 5. Sandblast 6. Turn all power drills into quick couplers 7. Use the handle of a hand screwdriver or battery/power tool 8. Color coded for easy identification Fits 1/4" quick releases or mounts directly to collets. Transform any power drill/ cordless on a nut driver. Easy to quickly drive nuts, bolts, fasteners, etc. Spring-loaded ball bearings in the head keep the socket in place safely. Widely used in home DIY, woodworking, auto parts, professional machinery maintenance, etc.