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 ⑧ Pipe Tap Series Overall Thread Position on Shank Size of Length oflengthlengthbasic dia.dia.squaresquareLℓℓgDsKℓk JIS ① PT LH Hand Taps for Taper Pipe Threads Long (ℓg) Type for LH Threads ② Specification ■The PT LH is a hand tap for left hand tapered pipe threads an is used for tapping products whose main purpose is the tightness of threaded ③ Left hand parts in connection with pipe parts etc. Recommended Tapping Speeds depending on Materials Medium carbon steels High carbon steels Alloy steels 中炭素鋼 高炭素鋼 合金鋼 〜5 〜5 〜5 ④ (m/min) (m/min) (m/min) TYPE:1 ⑤ g Segment:1G ⑥ Size Class Code BasicChamfermajor diaL(mm)(mm)ℓ(mm) ℓg(mm) Ds(mm) K(mm) ℓk(mm) No. offlutes TYPE MSRP For Pipe Threads PT 1/8-28 Ⅱ TH2T02K--L 2.5P 9.728 55 19 13 8 6 9 4 1 ¥4,070 ※ ⑦ PT 1/4-19 Ⅱ TH2T04---L 2.5P 13.157 62 28 21 11 9 12 4 1 ¥5,830 ※PT 3/8-19ⅡTH2T06---L2.5P16.66265282114111441¥9,570 ※ PT 1/2-14 Ⅱ TH2T08Q--L 2.5P 20.955 80 35 25 18 14 17 4 1 ¥15,800 ※ PT 3/4-14 Ⅱ TH2T12Q--L 2.5P 26.441 85 35 25 23 17 20 4 1 ¥26,000 ※ PT 1 -11 Ⅱ TH2T16U--L 2.5P 33.249 95 45 32 26 21 24 5 1 ¥47,900 ※ ⑧ PT 1 1/4-11 Ⅱ TH2T20U--L 2.5P 41.910 105 45 32 32 26 30 5 1 ¥72,300 ※ PT 1 1/2-11 Ⅱ TH2T24U--L 2.5P 47.803 110 45 32 38 29 32 6 1 ¥102,000 ※ PT 2 -11 Ⅱ TH2T32U--L 2.5P 59.614 120 50 35 46 35 38 6 1 ¥164,000 ※ ⑨ ⑩ ⑪ JIS ⑧-15 ※ = Specified Distribution Items. Made to order products.