1. VERSATILE SIZES: Includes two adjustable faucet sockets, suitable for 61/4inch and 1/41/2inch faucets, as well as a 3/8inch socket adapter. These components ensure a perfect fit for various tasks and improve work efficiency even in tight spaces. 2. TOOL COMPATIBILITY: Designed to work seamlessly with all 3/8' square wrenches, this set provides flexibility. Compatible with hand and power tools for a variety of applications, providing comfort and adaptability. 3. Wide Application: Perfect for engineers, construction workers, DIY enthusiasts and maintenance professionals. This tool kit simplifies tapping, reaming and screw extraction tasks, providing precision and ease on various projects. 4. CONSTRUCTION: Made of high quality chrome molybdenum steel, these tools ensure durability and reliability. The sizes are clearly marked on the faucet holders for easy identification, allowing for quick selection and efficient work.