⑩ Dies Outside
diameter
D
Thickness

T
Position of
basic dia.
ℓg
JIS
D NPTF
Spiral Fluted Taps
(for blind hole)
①


JIS Solid Round Dies for American Dryseal Taper Pipe Threads
Spiral Fluted Taps
(for through hole)
②


Specification
Front
表面 face
■T he D NPTF are solid round dies for the
American dryseal external tapered pipe threads
for dry sealed tubes with improved runout
Spiral Pointed Taps
(for through hole)


accuracy.
③


Recommended Tapping Speeds depending on Materials
Low carbon steels Medium carbon steels Cast irons Brass Brass castings Wrought aluminum Aluminum alloy castings
低炭素鋼 中炭素鋼 鋳鉄 黄銅 黄銅鋳物 アルミ圧延材 アルミ合金鋳物

2.5 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 5 2.5 5
〜 〜 〜 〜 〜 〜 〜
Hand Taps


( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min )
④


TYPE:1
Cemented
Carbide Taps
⑤


TYPE:2 TYPE:3
Roll Taps
⑥
Special Thread Taps
Simple Inspection Tools
⑦


Segment:3G
D T ℓg Clearance
Size Code (mm) (mm) (mm) holes TYPE MSRP
Pipe Taps


For NPTF Threads
⑧


1/16-27 NPTF TYJNF010NEBC 38 13 6 4 1 ¥18,400 ※
1/8-27 NPTF TYJNF020NEBC 38 13 6 4 1 ¥18,400 ※
1/4-18 NPTF TYJNF040NEBC 38 18 10 5 2 ¥18,400 ※
3/8-18 NPTF TYMNF060NEBC 50 22 10 5 2 ¥29,700 ※
Thread Mills
Premium Thread Mills


1/2-14 NPTF TYMNF080NEBC 50 22 12 6 2 ¥29,700 ※
⑨


3/4-14 NPTF TYRNF120NEBC 63 24 12 6 3 ¥78,200 ※
1 -11 1/2 NPTF TYUNF160NEBC 75 30 15 6 3 ¥140,000 ※
1 1/4-11 1/2 NPTF TYUNF200NEBC 75 30 15.5 6 3 ¥140,000 ※
Dies
⑩
Center Drills
Centering Tools
⑪


JIS
⑩-31 ※ = Specified Distribution Items. Made to order products.