Supply Of 1. Thread Plug Gauge M8 X 1.25 And Ring Gauge M8 X 1.25 Go & No-go, Confirming To Specification No. Is: 2334 - 2001 Gauge To Be Supplied With Calibration Sticker And Certificate Traceable To Nabl. Make-insize/baker Or Similar 2. Thread Plug Gauge M16 X 2.0 And Ring Gauge M16 X 2.0 Go & No-go, Confirming To Specification No. Is: 2334 - 2001 Gauge To Be Supplied With Calibration Sticker And Certificate Traceable To Nabl. Make-insize/baker Or Similar 3. Thread Plug Gauge M20x2.5 And Ring Gauge M20x2.5 Go & No-go, Confirming To Specification No. Is: 2334 - 2001 Gauge To Be Supplied With Calibration Sticker And Certificate Traceable To Nabl. Make-insize/baker Or Similar.