The GP 0.4189 7/16-28 CL2B NG by Field Tool Supply is engineered for precision in 7/16-28 threaded applications, measuring 0.4189 inches. This gauge is essential for verifying the fit of internal threads, ensuring reliable performance in various industrial settings. Constructed from durable materials, it offers excellent longevity and resistance to wear. The gauge meets industry compliance standards, providing confidence in its accuracy. Ideal for quality control, it is a necessary tool for professionals requiring precise measurements.