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 PO Spiral Pointed Taps ② Specification ③ Recommended Tapping Speeds depending on Materials Medium carbon steels High carbon steels 中炭素鋼 高炭素鋼 5〜10 5〜10 ④ (m/min) (m/min) Product Features ● The chips from the tap's cutting chamfer are pushed forward. This is optimal for through hole tapping where there are no obstructions created by the chip. ⑤ ●Straight flutes are shallow so the taps strength is very high. Comparison of a PO and + PO tap Chips discharge of a PO tap ⑥ PO For low-speed machining on drilling +PO For CNC Machining center at medium speed machines and CNC machining centers machining. Synchronous feed is recommended. Standard tap series PO for through holes. Plus series + PO for through holes. Old Name New Name Size Range Old Name New Name Size Range ⑦ N-PO PO M1.2 〜 M50 N+PO +PO M3 〜 M6 The PO and +PO use similar wording but have different The PO and +PO use similar wording but have different meanings. meanings. * Both are general-purpose spiral point taps developed for the processing environment of our customers. ⑧ Application chart Slow Tapping Speed Fast Hard Hard 5m/min 10m/min 15m/min 20m/min Work piece Material Fully synchronous feed area Work piece Material Alloy SCM SCM Alloy ⑨ Steel SCrHighS55C SCr SteelS55CHigh Carbon Carbon Steel S45C S45C Steel S45C S45C Medium Medium Carbon Carbon ⑩ Steel S30C PO +PO S30C Steel S30C S30C Low Low Carbon Carbon Steel Steel ⑪ SS400Soft SS400 Soft 5m/min 10m/min 15m/min 20m/min It is an image diagram of a processable range. JIS ③-11