We are Xuzhou Ouke Instrument Co.,Ltd based in Xuzhou, China. We are member of TradeKey.com since April, 2013. Our business is related to Tools industry and we specifically deal in pressure sensor,temperature sensor,water level switch,flow sensor,hss tap,diamond saw blade,tct wood saw blade,hss drill. Please find our product details below: HSS Acme Tap/ Trapezoidal Thread Tap Specifications Trapezoidal / Acme Tap, Tandem Acme Tap High speed steel Ground thread. Size: 1/4" to 2". TRAPEZOIDAL /ACME THREAD TAP . Thank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.