Обший каталог Yamawa 2016 - 2017 - страница 310

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

L ℓ Ds K ℓk
Spiral Pointed Taps Spiral Fluted Taps Spiral Fluted Taps
(for blind hole)


INT-NPT
Interrupted Taps for American Taper Pipe Threads
Specification
(for through hole)


■INT-NPT having low left-hand spiral flutes and having every
other thread ground off, reduces cutting torque. INT-NPT
E is suitable for such sticky materials as stainless steels and
Oxide
NPT 3/4 ～
chrome molybdenum steels.
Recommended Tapping Speed depending on Materials
(for through hole)


Stainless steels
〜
5
For icon explanation, refer to P.50
Hand Taps


TYPE：１ TYPE：２
Cemented
Carbide Taps


Segment：1G
Roll Taps


L ℓ Projection Ds K ℓk No. of
Size Class Code Chamfer Type
(inch) (inch) (inch) (inch) (inch) (inch) flutes
For American Pipe Threads
Y83151
0.437 0.328 1
Y83151BR
Pipe Taps Simple Inspection Tools


NPT 1/8-27 ANSI G 3P 2.125 0.75 0.312 0.375 5
Y83152
0.312 0.234 2
Y83152BR
Y83153
NPT 1/4-18 ANSI G 3P 2.437 1.062 0.459 0.562 0.421 0.437 5 1
Y83153BR
Y83154
NPT 3/8-18 ANSI G 3P 2.562 1.062 0.454 0.7 0.531 0.5 5 1
Y83154BR
Y83155
NPT 1/2-14 ANSI G 3P 3.125 1.375 0.579 0.687 0.515 0.625 5 2
Y83155BR
Y83156
Thread Mills


NPT 3/4-14 ANSI G 3P 3.25 1.375 0.565 0.906 0.679 0.687 5 2
Y83156BR
Y83157
NPT 1-11.5 ANSI G 3P 3.75 1.75 0.678 1.125 0.843 0.812 5 2
Y83157BR
Y83158
Dies


NPT 1 1/4-11.5 ANSI G 3P 4 1.75 0.686 1.312 0.984 0.937 5 2
Y83158BR
Y83159
NPT 1 1/2-11.5 ANSI G 3P 4.25 1.75 0.699 1.5 1.125 1 7 2
Y83159BR
Y83160
NPT 2-11.5 ANSI G 3P 4.5 1.75 0.667 1.875 1.406 1.125 7 2
Center Drills


Y83160BR
Centering Tools


ANSI
Pipe-5
306