Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools JIS ③ Spiral Pointed Tap Series for through hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS ① HC+PO HC- PO Spiral Pointed Taps for High Carbon Steels ② Specification ③ Recommended Tapping Speeds depending on Materials ・Product Name and Size. Medium carbon steels High carbon steels Thermal refined steels HC+PO 〜 M2.6 中炭素鋼 高炭素鋼 調質鋼 HC−PO M3 〜 5〜10 5〜10 5〜10 (m/min) (m/min) (m/min) ④ 25〜35HRC Product Features ●The HC+PO/HC-PO is a spiral pointed tap suitable for the tapping medium and high hardness workpiece materials up to 35 HRC in high carbon steel such as S55C. ⑤ Product system chart (tensile strength) HC+PO/HC-PO Application range (tensile strength) ⑥ Reference EH-HTEH-PO E-SP ⑦ HC+PO/HC-PO PO ⑧ Unit:MPa*5006007008009001000 *1MPa=1N/mm2≒1Kgf/mm2÷9.8 ⑨ ⑩ ⑪ JIS ③-75