The Taps LH(100) 1 9/16-8 H4 B from Field Tool Supply is a left-hand tap designed for threading applications. With a size of 1 9/16-8, this tap is ideal for creating internal threads in various materials. The H4 B designation indicates a high-quality finish, ensuring smooth operation and reduced friction during use. Constructed from durable materials, this tap is engineered to withstand rigorous machining conditions. Perfect for both professional machinists and hobbyists, it is a reliable choice for creating precise threads in metalworking projects.