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 NPTF-CI ① Hand Taps for American Dryseal Taper Pipe Threads, for Cast Irons ② Specification ■Suitable for hard and abrasive materials such as cast irons. Nitride ③ Recommended Tapping Speed depending on Materials Cast irons Ductile cast irons 鋳鉄 強靱鋳鉄 〜5 〜5 (m/min) (m/min) ④ TYPE:1 TYPE:2 Projection Projection ⑤ Segment:1G Size Class Code Chamfer L(inch) ℓ Projection Ds(inch)(inch)(inch)K(inch) ℓk(inch) No. offlutes TYPE ⑥ For Dryseal American Pipe Threads 1/8-27 NPTF ANSI G Y83226 3P 2.125 0.75 0.312 0.437 0.328 0.375 4 1 1/8-27 NPTF ANSI G Y83227 3P 2.125 0.75 0.312 0.312 0.234 0.375 4 2 1/4-18 NPTF ANSI G Y83228 3P 2.437 1.062 0.459 0.562 0.421 0.437 4 1 ⑦ 3/8-18 NPTF ANSI G Y83229 3P 2.562 1.062 0.454 0.7 0.531 0.5 4 1 1/2-14 NPTF ANSI G Y83230 3P 3.125 1.375 0.579 0.687 0.515 0.625 4 2 3/4-14 NPTF ANSI G Y83231 3P 3.25 1.375 0.565 0.906 0.679 0.687 5 2 1 -11 1/2 NPTF ANSI G Y83232 3P 3.75 1.75 0.678 1.125 0.843 0.812 5 2 1 1/4-11 1/2 NPTF ANSI G Y83233 3P 4 1.75 0.686 1.312 0.984 0.937 5 2 ⑧ 1 1/2-11 1/2 NPTF ANSI G Y83234 3P 4.25 1.75 0.699 1.5 1.125 1 7 2 2 -11 1/2 NPTF ANSI G Y83235 3P 4.5 1.75 0.667 1.875 1.406 1.125 7 2 ⑨ ⑩ ⑪ ANSI ※ This product is different from JIS products in shape and dimensions, please be careful when using. ⑧-94