Обший каталог Yamawa 2016 - 2017 - страница 307

Overall Thread Shank Size of Length of
length length dia. square square

L ℓ Ds K ℓk


(for blind hole)
Spiral Fluted Taps Spiral Fluted Taps Spiral Pointed Taps
ZELX SS NPTF
Taps for American Dryseal Taper Pipe Threads
Specification


(for through hole)
■Suitable for tapping stainless steels, chrome steels and
chrome molybdenum steels.
E
Oxide
NPTF 3/4 ～
Recommended Tapping Speed depending on Materials


(for through hole)
ow carbon steels Alloy steels Stainless steels

5 5 5
For icon explanation, refer to P.50


Hand Taps
TYPE：１ TYPE：２


Carbide Taps
Cemented
Segment：1H


Roll Taps
L ℓ Projection Ds K ℓk No. of
Size Class Code Chamfer Type
(inch) (inch) (inch) (inch) (inch) (inch) flutes
For Dryseal American Pipe Threads
NPTF 1/16-27 ANSI G Y83660 2.5P 2.125 0.687 0.312 0.312 0.234 0.375 4 1
Y83661 0.437 0.328 1


Simple Inspection Tools Pipe Taps
NPTF 1/8-27 ANSI G 2.5P 2.125 0.75 0.312 0.375 4
Y83662 0.312 0.234 2
NPTF 1/4-18 ANSI G Y83663 2.5P 2.437 1.062 0.459 0.562 0.421 0.437 4 1
NPTF 3/8-18 ANSI G Y83664 2.5P 2.562 1.062 0.454 0.7 0.531 0.5 4 1
NPTF 1/2-14 ANSI G Y83665 2.5P 3.125 1.375 0.579 0.687 0.515 0.625 4 2
NPTF 3/4-14 ANSI G Y83666 2.5P 3.25 1.375 0.565 0.906 0.679 0.687 4 2
NPTF 1-11.5 ANSI G Y83667 2.5P 3.75 1.75 0.678 1.125 0.843 0.812 4 2


Thread Mills
Dies
Center Drills
Centering Tools


ANSI
Pipe-2
303