Features Durable Chrome Vanadium Steel Construction - Crafted from high-quality materials, these adapters are designed for heavy-duty performance, ensuring longevity and reliability during use Secure Fit with Spring Loaded Ball Bearing - The innovative design features a ball bearing that securely holds sockets in place, allowing for quick and easy changes with minimal effort Transform Hand Tools into Power Tools - Effortlessly convert your hand socket set into a driven socket set, enhancing your impact driver or drill's versatility and efficiency for various tasks Universal Compatibility for Easy Use - The 1/4" hex shank fits all quick change chucks and standard drill chucks, making these adapters suitable for a wide range of impact drivers and applications Convenient 3-Piece Set for Multiple Sizes - This set includes 1/4", 3/8", and 1/2" drive sizes, providing essential options for tackling different projects and ensuring you're always prepared Features: 1、100% brand and . 2、The product is made from material, easy to be installed and dismantled, not easy falling off when it was using. 3、Anti , anti slip, high occlusion, tight and flexible. 4、It is applicable for installing in those tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, manual screwdriver, etc. 5、It is widely used in scene of household DIY, auto parts, woodworking, profional machine repairing, etc. Specification: Features: 100% brand and . The product is made from material, easy to be installed and dismantled, not easy falling off when it was using. Anti , anti slip, high occlusion, tight and flexible. It is applicable for installing in those tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, manual screwdriver, etc. It is widely used in scene of household DIY, auto parts, woodworking, profional machine repairing, etc. Specification: Material: Steel 40CR Shank Shape: Hex shank Total Number: 14 pcs Metric: 5mm / 5.5mm / 6mm / 7mm / 8mm / 10mm / 12mm Imperial: 3/16" / 1/4" / 9/32" / 5/16" / 11/32" / 3/8" / 7/16" Package Included: 1 x 14 pcs(1 set)Strong Hex Socket Package List