The TAPS LH(104) 1 5/8-18 GH5 B from Field Tool Supply is a premium left-hand tap designed for threading applications. With a thread size of 1 5/8-18, this tap is perfect for creating internal threads in various materials, including metals and plastics. Made from high-speed steel, it offers excellent durability and resistance to wear. The GH5 B designation indicates a specific thread profile, ensuring compatibility with a range of fasteners. This tap meets industry standards, making it a reliable choice for professionals and hobbyists alike.