Обший каталог Yamawa 2016 - 2017 - страница 601

Overall Thread Position on Shank Size of Length of
length length basic dia. dia. square square

L ℓ ℓg Ds K ℓk


(for blind hole)
Spiral Fluted Taps Spiral Fluted Taps Spiral Pointed Taps
INT-S-NPT
Interrupted Taps for American Taper Pipe Threads, Short (ℓg) Type
Specification


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


(for through hole)
Stainless steels
〜
5
For icon explanation, refer to P.50


Hand Taps
TYPE：1 TYPE：2


Carbide Taps
Cemented
g g


Segment：1G


Roll Taps
Basic
Size Class Code Chamfer major dia L ℓ ℓg Ds K ℓk No. of Type Stock
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) flutes
For American Pipe Threads
NPT 1/16-27 ANSI G TISNT01L 3P 7.770 54 14 10.1 8 6 9 3 1 △


Simple Inspection Tools
Special Thread Taps
NPT 1/8-27 ANSI G TISNT02L 3P 10.117 55 16.5 10.5 8 6 9 5 2 △
NPT 1/4-18 ANSI G TISNT04O 3P 13.426 62 19.5 12.5 11 9 12 5 2 △
NPT 3/8-18 ANSI G TISNT06O 3P 16.866 65 21 14 14 11 14 5 2 △
NPT 1/2-14 ANSI G TISNT08Q 3P 20.980 80 27 17 18 14 17 5 2 △
△


Pipe Taps
NPT 3/4-14 ANSI G TISNT12Q 3P 26.325 85 29 19 23 17 20 5 2
NPT 1 -11.5 ANSI G TISNT16T 3P 32.934 95 35 22 26 21 24 5 2 △
NPT 1 1/4-11.5 ANSI G TISNT20T 3P 41.689 105 37.5 24.5 32 26 30 5 2 △
NPT 1 1/2-11.5 ANSI G TISNT24T 3P 47.760 110 38.5 25.5 38 29 32 7 2 △
NPT 2 -11.5 ANSI G TISNT32T 3P 59.797 120 42.5 27.5 46 35 38 7 2 △
Thread Mills
Dies
Center Drills
Centering Tools


JIS
◎=Standard ○=Semi standard △=Made to order
Pipe-48
For improvement, spec may change without advance notice. 597