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- Product: 3/8 x 19 BSP Screw Ring Thread Gauges
- Type: LEFT HAND
- Size: 3/8" x 19 tpi BSPP British Standard Pipe Parallel
- Type: G3/8" Go / NoGo Ring Gauge Class A Fit
- Options: Go or No-Go Ring
- UKAS Calibration adds 7 days see options box
- Part Number ES-16802