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 SP-NPT ① Spiral Fluted Taps for American Taper Pipe Threads ② Specification ■The SP-NPT is a spiral flute tap for the American tapered pipe threads and is used for products whose main purpose is the tightness of threaded parts in connection with pipe parts etc. ③ Recommended Tapping Speeds depending on Materials 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 TYPE:2 g 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 1/16-27 NPT ANSI G SNPT01L 2.5P 7.770 54 17 12 8 6 9 3 1 ¥6,250 ※ 1/8-27 NPT ANSI G SNPT02L 2.5P 10.117 55 19 12.05 8 6 9 3 2 ¥6,250 ※ 1/4-18 NPT ANSI G SNPT04O 2.5P 13.426 62 28 17.45 11 9 12 3 2 ¥8,870 ※ ⑦ 3/8-18 NPT ANSI G SNPT06O 2.5P 16.866 65 28 17.65 14 11 14 3 2 ¥14,800 ※ 1/2-14 NPT ANSI G SNPT08Q 2.5P 20.980 80 35 22.85 18 14 17 4 2 ¥24,400 ※ 3/4-14 NPT ANSI G SNPT12Q 2.5P 26.325 85 35 22.95 23 17 20 4 2 ¥40,700 ※ 1 -11 1/2 NPT ANSI G SNPT16T 2.5P 32.934 95 45 27.4 26 21 24 4 2 ¥75,400 ※ ⑧ ⑨ ⑩ ⑪ JIS ※ = Specified Distribution Items. Made to order products. ⑧-86