JIS 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 Pipe Tap Series Overall Thread Position on Shank Size of Length oflengthlengthbasic dia.dia.squaresquareLℓℓgDsKℓk⑧ JIS LS-SP-S-NPT ① Long Shank Spiral Fluted Taps for American Taper Pipe Threads, Short (ℓg) Type ② Specification ■ The SP-NPT is a long shank spiral flute tap for the American tapered pipe threads where it is necessary to shorten the fitting length and is used for products whose main purpose is theRecommended Tapping Speeds depending on Materialstightness of threaded parts in connection with③ pipe parts etc. Low carbon steels Medium carbon steels High carbon steels 低炭素鋼 中炭素鋼 高炭素鋼 〜5 〜5 〜5 (m/min) (m/min) (m/min) ④ TYPE:1 g ⑤ Segment:1G Size Class Code BasicChamfermajordia(mm)L(mm) ℓ(mm) ℓg(mm) Ds(mm) K(mm) ℓk(mm)No. offlutes TYPE MSRP ⑥ For American Pipe Threads 1/8-27 NPT ANSI G SSNPT02LL10 2.5P 10.117 100 16.5 10.5 8 6 9 3 1 ¥11,000 ※ 1/4-18 NPT ANSI G SSNPT04OL15 2.5P 13.426 150 19.5 12.5 11 9 12 3 1 ¥20,900 ※ 3/8-18 NPT ANSI G SSNPT06OL15 2.5P 16.866 150 21 14 14 11 14 3 1 ¥34,500 ※ ⑦ 1/2-14 NPT ANSI G SSNPT08QL15 2.5P 20.980 150 27 17 18 14 17 4 1 ¥41,600 ※ 3/4-14 NPT ANSI G SSNPT12QL15 2.5P 26.325 150 29 19 23 17 20 4 1 ¥65,200 ※ ⑧ ⑨ ⑩ ⑪ JIS ※ = Specified Distribution Items. Made to order products. ⑧-88