Обший каталог Yamawa 2016 - 2017 - страница 313

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Overall Thread Shank Size of Length of length length dia. square square L ℓ Ds K ℓk NPTF-CI (for blind hole) Spiral Fluted Taps Hand Taps for American Dryseal Taper Pipe Threads, for Cast Irons Specification (for through hole) Spiral Fluted Taps ■Suitable for hard and abrasive materials such as cast irons. E Nitride NPTF 3/4 ～ Recommended Tapping Speed depending on Materials (for through hole) Spiral Pointed Taps Cast irons Ductile cast irons 〜5 〜5 (m/min) (m/min) For icon explanation, refer to P.50 TYPE：１ TYPE：２ Hand Taps Carbide Taps Cemented Segment：1G Size Class Code Chamfer L ℓ Projection Ds K ℓk No. of Type Roll Taps (inch) (inch) (inch) (inch) (inch) (inch) flutes For Dryseal American Pipe Threads Y83226 0.437 0.328 1 NPTF 1/8-27 ANSI G 3P 2.125 0.75 0.312 0.375 4 Y83227 0.312 0.234 2 NPTF 1/4-18 ANSI G Y83228 3P 2.437 1.062 0.459 0.562 0.421 0.437 4 1 Simple Inspection Tools Pipe Taps NPTF 3/8-18 ANSI G Y83229 3P 2.562 1.062 0.454 0.7 0.531 0.5 4 1 NPTF 1/2-14 ANSI G Y83230 3P 3.125 1.375 0.579 0.687 0.515 0.625 4 2 NPTF 3/4-14 ANSI G Y83231 3P 3.25 1.375 0.565 0.906 0.679 0.687 5 2 NPTF 1-11.5 ANSI G Y83232 3P 3.75 1.75 0.678 1.125 0.843 0.812 5 2 NPTF 1 1/4-11.5 ANSI G Y83233 3P 4 1.75 0.686 1.312 0.984 0.937 5 2 NPTF 1 1/2-11.5 ANSI G Y83234 3P 4.25 1.75 0.699 1.5 1.125 1 7 2 NPTF 2-11.5 ANSI G Y83235 3P 4.5 1.75 0.667 1.875 1.406 1.125 7 2 Thread Mills Dies Center Drills Centering Tools ANSI Pipe-8 309