
⑧ Pipe Tap Series Overall length L Thread length ℓ Position on basic dia. ℓg Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS AUSP Rc Spiral Fluted Taps (for blind hole) ① JIS Z-PRO Coated Spiral Fluted Taps for Taper Pipe Threads Spiral Fluted Taps (for through hole) ② Specification Coating Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels Stainless steels Aluminum alloy castings Zinc alloy castings 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 ステンレス鋼 アルミ合金鋳物 亜鉛合金鋳物 〜 7 〜 7 〜 7 〜 5 〜 3 〜 10 〜 10 Hand Taps ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ④ Product Features ●Proper tool projection length is secured, achieving a good chip ejection efficiency. ●Good internal thread surface and long tool life are achieved through adoption of the unique cutting edge shape and special coating. Cemented Carbide Taps ⑤ Tapping Data Tapping conditions [AUSP Rc 1/4-19] Workpiece Materials SS400 YAMAWA Competitor Roll Taps Tapping Speed 5m/min AUSP Rc Good surface roughness Spiral fluted tap Gouges have occurred ⑥ Machine Machining center Holder With tension and compression Tapping Fluid Water soluble cutting fluid Special Thread Taps Simple Inspection Tools ⑦ ・Compatible with tapping of a wide range of work materials AUSP Rc Standard tapping conditions Pipe Taps Workpiece Materials Standard Tapping Speed(m/min) ⑧ Stainless Steels SUS304 〜3 Alloy Steels SCM/SCr 〜5 High Carbon Steels S45C 〜 〜7 Medium Carbon Steels S25C 〜 S45C 〜7 Low Carbon Steels 〜 S20C/SS400 〜7 Thread Mills Premium Thread Mills ⑨ Aluminum Alloy Casting/ AC/ADC/ZDC 〜 10 Zinc Alloy Casting Dies ⑩ Center Drills Centering Tools ⑪ JIS ⑧-7