【LONG ALLEN SOCKET SET INCLUDED】: This set includes 11pcs 3/8" drive long METRIC hex bit sockets (sizes 3mm to 12mm) and 8pcs 3/8" drive long SAE hex bit sockets (size 1/8" to 3/8"), all housed in a black storage case. Our product has obtained U.S. Section 889 certification and meets all government requirements, so you can purchase with confidence. 【RUST RESISTANT AND DURABLE】: Crafted with tough chrome-vanadium steel and durable S2 alloy steel bits, this 3/8-inch allen socket set is built to last, providing superior hardness, reduced wear and tear, and ensures a permanent connection that won't loosen over time 【EXTRA-LONG BITS PRECISION DESIGN】: Each bit features a special chamfering design on the head that enhances contact with fasteners, reduces wear and tear, and safeguards those fasteners 【EASY TO USE】: The die-stamped size markings are clear, durable, and easily visible, making it a breeze to find the right size. And with extra-long allen bits, you'll be able to access hard-to-reach areas quickly and easily, making your work more efficient and saving time 【SERVICE GUARANTEE】: We're so proud to say that all our LLNDEI tools meet or exceed ANSI performance standards, and this allen wrench socket set is no exception. We're also confident that you'll be satisfied with its quality, which is why we offer a lifetime guarantee. If you have any questions, please don't hesitate to contact us - we're always here to help Enhance your toolkit with our versatile and high-quality 19PCS Extra Long Hex Bit Socket Set. This comprehensive set includes both Standard SAE and Metric sizes, covering a wide range of applications from 1/8" to 3/8" (SAE) and 3mm to 12mm (Metric). Crafted with precision and durability in mind, each socket is made from premium alloy steel, ensuring long-lasting performance and resistance to wear and tear. The extra-long design provides extended reach and accessibility, making it ideal for accessing tight spaces and hard-to-reach areas. With a precise hex bit design, these sockets provide a secure fit and prevent stripping or rounding of fasteners. The bits are carefully heat-treated for added strength and feature a corrosion-resistant finish, ensuring reliable performance even in demanding work environments. This versatile set is suitable for various applications, including automotive repairs, machinery maintenance, DIY projects, and more. The convenient storage case keeps the sockets organized and easily accessible, allowing you to quickly find the right size for the task at hand. Whether you're a professional mechanic or a dedicated DIY enthusiast, our 19PCS Extra Long Hex Bit Socket Set is designed to meet your needs. Invest in this reliable and efficient tool set to tackle your projects with confidence and precision. Upgrade your toolkit today with our 19PCS Extra Long Hex Bit Socket Set - the perfect combination of quality, versatility, and durability.