The GP NPTF(04) 1/4-18 6STEP from Field Tool Supply is a high-quality pipe tap designed for creating NPTF threads in various materials. With a size of 1/4-18, this tap is perfect for plumbing and industrial applications. The 6-step design allows for efficient threading, minimizing the risk of damage to the workpiece. Constructed from durable materials, this tap meets industry standards for quality and performance. It is compatible with standard tap wrenches and is an essential tool for any professional or DIY enthusiast working with pipe fittings.