For checking male taper threads.

Product Code Type (Model) Size
RX-473001 Thread Gauge Set (1/2", 3/4", 1") 1/2", 3/4", 1" with metal case
RX-473002 Thread Gauge Set (1/2", 3/4", 1" 11/4", 1 1/2", 2") 1/2", 3/4", 1", 1 1/4", 1 1/2", 2"
RX-473010 Thread Gauge 1/2" 15A
RX-473011 Thread Gauge 3/4" 20A
RX-473012 Thread Gauge 1" 25A
RX-473013 Thread Gauge 1 1/4" 32A
RX-473014 Thread Gauge 1 1/2" 40A
RX-473015 Thread Gauge 2" 50A
RX-473016 Thread Gauge 2 1/2" 65A
RX-473017 Thread Gauge 3" 80A
RX-473019 Thread Gauge 4" 100A
RX-473020 Thread Gauge 5" 125A
RX-473021 Thread Gauge 6" 150A