NPTF

Hand Taps for American Dryseal Taper Pipe Threads

Specification

E

NPTF 3/4~

Recommended Tapping Speeds depending on Materials

Medium carbon steels

〜5

For icon explanation, refer to P.50

TYPE:1 TYPE:2

g g

Segment:1G

SizeClassCodeChamferBasic major dia (mm)L (mm)ℓ (mm)ℓg (mm)Ds (mm)K (mm)ℓk (mm)No. of flutesTypeStock
For AmericanPipeThreads
NPTF 1/16-27ANSI GTNTF01L3P7.77054171286941
NPTF 1/8-27ANSI GTNTF02L3P10.117551912.0586942
NPTF 1/4-18ANSI GTNTF04O3P13.426622817.451191242
NPTF 3/8-18ANSI GTNTF06O3P16.866652817.6514111442
NPTF 1/2-14ANSI GTNTF08Q3P20.980803522.8518141742
NPTF 3/4-14ANSI GTNTF12Q3P26.325853522.9523172042
NPTF 1 -11.5ANSI GTNTF16T3P32.934954527.426212452
NPTF 1 1/4-11.5ANSI GTNTF20T3P41.6891054528.132263052
NPTF 1 1/2-11.5ANSI GTNTF24T3P47.7601104528.438293262
NPTF 2 -11.5ANSI GTNTF32T3P59.797120502846353862