New System table of taps for steels, blind hole use(low and middle speed range) slow Tapping speed fast Product System 5m/min 10m/min 15m/min 20m/min 30m/min Workpiece Workpiece Area of full rigid lead feed Materials Materials UH-CT Hard material Hard material 60HRC >>> ⑤-27 60HRC 55HRC 55HRC EH-CT 45HRC >>> ⑤-23 45HRC Heat treated Heat treated 45HRC 45HRC EH-HT steels steels >>> ④-119 35HRC 35HRC HC +SP >>> ①-129 steels steels SKS SKS Tool Tool SKD HC - SP SKD >>> ①-129 steels steels SCM SCM Alloy Alloy SCr SCr High carbon High carbon SP +SP steels steels >>> ①-35 >>> ①-55 S45C S45C HT >>> ④-3 Medium carbon steels Medium carbon steels S45C S45C S30C S30C IHT E-SP >>> ④-49 >>> ①-127 ISP Low carbon steels >>> ①-59 Low carbon steels S25C S25C SS400 SS400 cast irons cast irons Ductile Ductile FCD FC-HT N-CT FC FCD >>> ④-91 >>> ⑤-10 irons irons Cast Cast FC FC 5m/min 10m/min 15m/min 20m/min 30m/min An image telling possible applications Product System-3