Chenchuan Tools Co.,ltd

We are a professional manufacturer and supplier of thread ring gauges and thread plug gauges, including GO / NOGO, RH/LH( right hand and left hand). We have rich ranges of thread gauges, which include UN (UN,UNR,UNC,UNF,UNS,UNEF), Metric, ACME, BSPP (G), BSPT(R), NPT,NPTF, Trapezoidal, MJ, UNJ,UNJC,UNJF,UNJEF,UNJS etc.We not only have thread gauges, but also have plain gauges. Metric thread gauges from M1-M300 in stock, 6H/6g is the standard tolerance,special tolerance requirement is also available. UN,UNR,UNC,UNF,UNS,UNEF thread gauges have size from 0-6″ in stock, plug gauges tolerance:1B2B3B, ring gauges tolerance: lA2A3A. 2A/2B is the standard tolerance. ACME thread gauges from 1/4″-2″ include ACME, Stub ACME, tolerance: 2G BSPP(G),BSPT(R) from 1/8″-4″ in stock NPT thread gauges from 1/16″-6″ in stock, Tr thread gauges from Tr14-Tr140, plug gauges tolerance: 7H8H9H, ring gauges tolerance: 7h7e8e8c9c