Supply Of Set Of Thread Plug Gauge For Lhb Coaches, One Set Of Go No Go Thread Plug Gauge Should Have Following Item 1.) Plug Gauge Go & No Go Size M20x2.5mm Picth, Quantity 1 No, 2) Plug Gauge Go & No Go Size M16x2mm Pitch, Quantity 1 No, 3) Plug Gauge Go & No Go Size M8x1.25mm Pitch, Quantity 1 No. Make: Braker Or Master Metrology Or Similar. Note: Calibration Certificate To Be Supplied From Nabl Approved Labs