13/16x20 UNEF - 2A Go / No-Go Screw Ring Thread Gauge

Specification Product: 13/16 x 20 UNEF - 2A Screw Ring Thread Gauge Size: 13/16" Unified Extra Fine thread ring gauges Type: 13/16"x20 tpi UNEF Go or No-Go Options: Go Ring and No-Go Ring UKAS Calibration adds 7 days see options box Part Number ES-3720