The TAPS RH(055) 55/64-9 GH4 B from Field Tool Supply is a high-quality right-hand tap designed for precision threading in various materials. With a size of 55/64" and a 9 thread count, this tap is ideal for creating internal threads in metal and plastic applications. Made from durable high-speed steel, it ensures longevity and resistance to wear. The GH4 B designation indicates a specific geometry that enhances chip removal and reduces friction during operation. This tap is suitable for use in CNC machines and manual lathes, making it versatile for both professional and DIY projects.