Product Name: Bsw Bsf Whitworth Thread Ring Gauges Go Nogo Gage External Ring Gauge Model NO.: BSW / BSF Customized: Customized Shape: Round Usage: For Working, For Inspection, For Checking Certification: ISO Precision Gauge: Precision Gauge Material: Steel Test Methods: Through Check Method Measurement Object: Outside Diameter Type: Ring Gauge Application: for Check Trademark: sanyinghe Transport Package: Carton Specification: 1 pcs in a plastic pack Origin: China HS Code: 9031809090 Product Description BSW BSF Whitworth Thread Ring Gauges GO NOGO Gage External Ring GaugeRing gauges used to check external thread. Plug gauges used to check internal thread GO & NOGO, RH(right hand) & LH(left hand) available Metric, United Inch( UNEF, UNF, UNC, UN, UNS), Stub ACME, ACME, BSPP, PSPT, NPT, Trapezoidal (Tr), and Whitworth thread gauges, etc.Material: GCR15Hardness: 58-65 HRCTolerance: +/-0.001mm~+/-0.0025mmWelcome CustomizedTypeSeriesMeasuring RangeStandard ToleranceMetricgaugeMM1-M3006g,6H,7g,7H...US UnitgaugeUN/UNC/UNF/UNEF/UNS/NPSC/NPSMNPSH/NPSF/NPSI/NPSL/NH/STI0-12''2A,2BJap UnitgaugePT0-12''2A,2BImperialstandardgaugeBSW/BSF0-12''2A,2BTapergaugeNPT/NPTF/Z/BKG/R/RBRc/RP/PT/ZG/WKG/BSPTANPT/PTF0-6''2A,2BTrapezoidalgaugeTr ACME /STUB-ACME0-6''2G,3G,4GOtherAPI/G/PF/PS/BSP/STBSPP/DINsplinegauge0-6''