High Quality MaterialThe cordless impact driver bit holder is made of high quality chrome vanadium steel with particularly high hardness and good abrasion resistance. Polished and corrosion resistant finish to make it more durable. Easy to UseThe socket set is easy to install and disassemble, and is not easy to fall off during use. The nut socket set is highly occlusive, firm and flexible. Each socket has an obvious size marking, you can quickly find the socket you need. 1/4" Hex ShankThis hex socket is suitable for installation in hex tools such as air screwdriver, electric screwdriver, air drill, electric drill, pistol drill, hand screwdriver and much more. Size Ranges7pcs. Socket Adapter (inch): 3/16", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16"; 7pcs Drive Nuts (Metric): 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm, 12mm. The different sizes of hex drill bits are enough to meet your daily needs. Multi-PurposeUniversal 1/4" hex shanks accommodate quick changes and are securely fastened in standard chucks that fit all drills, screwdrivers, and pistol drills. Widely used in household goods, auto parts, woodworking, professional machine repairs, and more. Color & Size: As picture shown. Package Included: 14 x Hex Sockets Features: - The inner hex socket is made of high quality material, sturdy and durable. - Comes with a work case, easier to carry and store. - Widely used in DIY, auto parts, woodworking, professional machine repairs. - Suitable for installation in hexagonal tools such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, electric drill, electric drill, pistol drill, manual screwdriver, and more.