Asimeto Ring Thread Gauge (NoGo) - BSP (G) - Right Hand - 6g - 1/16 x 28The Asimeto Ring Gauge NOGO BSP BSPP 6G from the 690 Series is a precision tool designed to verify the external threads of British Standard Pipe (BSP) and British Standard Pipe Parallel (BSPP) fittings. This ring gauge is specifically calibrated for the 6G tolerance class, delivering quick, reliable pass fail checks to ensure components meet exact threading requirements. It is sized for 1 16 x 28 and features a right hand thread orientation to match