US Standard NPTF Thread Seal Go-No-Go Gauge, 1/16-27 L1 & 8-3 L3

This precision tool is designed for accurately checking and verifying the conformity of internal threads to the US National Pipe Taper Fuel (NPTF) standards. It includes two specific gauges: the L1 gauge, for measuring 1/16-27 threads, and the L3 gauge, for 8-3 threads. Engineered to ensure a secure and leak-proof fit, this Go-No-Go gauge set is an essential instrument for quality control in manufacturing environments where threaded connections are critical. Users can efficiently determine whether threads meet or fall outside of specified tolerances, ensuring both safety and performance in fluid and air systems. Material: High-quality steel Gauge Type: Gauge Manufacture country: China Instructions included: No