The 1/4-18 NPTF 6-Step Gage from Field Tool Supply is a precision tool designed for accurate measurement and verification of NPTF threads. This gage features a 6-step design, allowing for comprehensive testing of thread profiles. Constructed from high-quality materials, it ensures durability and long-lasting performance. The 1/4-18 size is ideal for various applications in plumbing and mechanical systems. This gage meets industry standards for accuracy, making it a reliable choice for professionals in need of precise thread measurement.