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 ANSI ⑧ Pipe Tap Series Overall Thread Shank Size of Length oflengthlengthdia.squaresquareLℓDsKℓk ANSI ① NPTF Hand Taps for American Dryseal Taper Pipe Threads ② Specification ■The NPTF is a hand tap for the American dry seal tapered pipe threads and is used for products whose main purpose is the tightness of the ③ Oxide threaded part in connection with pipe parts, etc. Recommended Tapping Speed 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 TYPE:2 ⑤ Projection Projection Segment:1G ⑥ Size Class Code Chamfer L(inch) ℓ Projection Ds(inch)(inch)(inch)K(inch) ℓk(inch) No. offlutes TYPE For Dryseal American Pipe Threads 1/16-27 NPTF ANSI G Y83125 3P 2.125 0.687 0.312 0.312 0.234 0.375 4 1 1/16-27 NPTF ANSI G Y83125BR 3P 2.125 0.687 0.312 0.312 0.234 0.375 4 1 ⑦ 1/8-27 NPTF ANSI G Y83126 3P 2.125 0.75 0.312 0.437 0.328 0.375 4 1 1/8-27 NPTF ANSI G Y83126BR 3P 2.125 0.75 0.312 0.437 0.328 0.375 4 1 1/8-27 NPTF ANSI G Y83127 3P 2.125 0.75 0.312 0.312 0.234 0.375 4 2 1/8-27 NPTF ANSI G Y83127BR 3P 2.125 0.75 0.312 0.312 0.234 0.375 4 2 1/4-18 NPTF ANSI G Y83128 3P 2.437 1.062 0.459 0.562 0.421 0.437 4 1 ⑧ 1/4-18 NPTF ANSI G Y83128BR 3P 2.437 1.062 0.459 0.562 0.421 0.437 4 1 3/8-18 NPTF ANSI G Y83129 3P 2.562 1.062 0.454 0.7 0.531 0.5 4 1 3/8-18 NPTF ANSI G Y83129BR 3P 2.562 1.062 0.454 0.7 0.531 0.5 4 1 1/2-14 NPTF ANSI G Y83130 3P 3.125 1.375 0.579 0.687 0.515 0.625 4 2 ⑨ 1/2-14 NPTF ANSI G Y83130BR 3P 3.125 1.375 0.579 0.687 0.515 0.625 4 23/4-14 NPTFANSI GY831313P3.251.3750.5650.9060.6790.68752 3/4-14 NPTF ANSI G Y83131BR 3P 3.25 1.375 0.565 0.906 0.679 0.687 5 2 1 -11 1/2 NPTF ANSI G Y83132 3P 3.75 1.75 0.678 1.125 0.843 0.812 5 2 1 -11 1/2 NPTF ANSI G Y83132BR 3P 3.75 1.75 0.678 1.125 0.843 0.812 5 2 ⑩ 1 1/4-11 1/2 NPTF ANSI G Y83133 3P 4 1.75 0.686 1.312 0.984 0.937 5 2 1 1/4-11 1/2 NPTF ANSI G Y83133BR 3P 4 1.75 0.686 1.312 0.984 0.937 5 2 1 1/2-11 1/2 NPTF ANSI G Y83134 3P 4.25 1.75 0.699 1.5 1.125 1 6 2 1 1/2-11 1/2 NPTF ANSI G Y83134BR 3P 4.25 1.75 0.699 1.5 1.125 1 6 2 2 -11 1/2 NPTF ANSI G Y83135 3P 4.5 1.75 0.667 1.875 1.406 1.125 6 2 ⑪ 2 -11 1/2 NPTF ANSI G Y83135BR 3P 4.5 1.75 0.667 1.875 1.406 1.125 6 2 ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ⑧-93 ※ BR at the end of a product code indicates untreated products.