The TAPS LH(064) 1- 9 GH4 B from Field Tool Supply is a left-hand tap designed for precision threading in various materials. This tap features a size of 1-9, making it suitable for a range of applications. The GH4 B designation indicates its high-quality construction, ensuring durability and performance. Ideal for metalworking and repair tasks, this tap is perfect for creating internal threads in holes. Its left-hand design allows for unique threading applications, providing versatility in use. Made from premium materials, this tap is built to withstand rigorous use while delivering consistent results.