ANSI 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 Shank Size of Length oflengthlengthdia.squaresquareLℓDsKℓk⑧ ANSI NPSF ① Hand Taps for American Dryseal Parallel Pipe Threads ② Specification ■The NPSF is a hand tap for the American dry seal parallel pipe threads and is used for screw tapping of products whose main purpose is the Oxide tightness of threaded parts in connection with ③ Recommended Tapping Speed depending on Materials pipe parts etc. Low carbon steels Medium carbon steels High carbon steels 低炭素鋼 中炭素鋼 高炭素鋼 5〜10 5〜10 5〜10 (m/min) (m/min) (m/min) ④ TYPE:1 TYPE:2 ⑤ Segment:1G Size Class Code Chamfer L(inch) ℓ(inch) Ds(inch) K(inch) ℓk(inch) No. offlutes TYPE ⑥ For Dryseal American Pipe Threads 1/8-27 NPSF ANSI G Y83326 4P 2.125 0.75 0.437 0.328 0.375 4 1 1/8-27 NPSF ANSI G Y83326BR 4P 2.125 0.75 0.437 0.328 0.375 4 1 1/8-27 NPSF ANSI G Y83327 4P 2.125 0.75 0.312 0.234 0.375 4 2 ⑦ 1/8-27 NPSF ANSI G Y83327BR 4P 2.125 0.75 0.312 0.234 0.375 4 2 1/4-18 NPSF ANSI G Y83328 4P 2.437 1.062 0.562 0.421 0.437 4 1 1/4-18 NPSF ANSI G Y83328BR 4P 2.437 1.062 0.562 0.421 0.437 4 1 3/8-18 NPSF ANSI G Y83329 4P 2.562 1.062 0.7 0.531 0.5 4 1 1/2-14 NPSF ANSI G Y83330 4P 3.125 1.375 0.687 0.515 0.625 4 2 ⑧ 1/2-14 NPSF ANSI G Y83330BR 4P 3.125 1.375 0.687 0.515 0.625 4 2 3/4-14 NPSF ANSI G Y83331 4P 3.25 1.375 0.906 0.679 0.687 5 2 3/4-14 NPSF ANSI G Y83331BR 4P 3.25 1.375 0.906 0.679 0.687 5 2 1 -11 1/2 NPSF ANSI G Y83332 4P 3.75 1.75 1.125 0.843 0.812 5 21 -11 1/2 NPSFANSI GY83332BR4P3.751.751.1250.8430.81252 ⑨ ⑩ ⑪ ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ※ BR at the end of a product code indicates untreated products. ⑧-100