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Drill Service (Horley) Ltd

Contact sales on sales@drill-service.co.uk or call +44 (0)1293774911

National Pipe Taper (NPT)

NPT - National Pipe Taper Dies and Dienuts. to ANSI B1.20.1.

Split circular Dies are stocked as standard. General purpose dies for use on most common materials. The chamfer is ground, with lapped threads and cut thread consistently to size.

Dies are available in the solid version on request and also with a spiral entry. The spiral entry causes a peeling cut with swarf being forced ahead of the die - use recommended for use in attachments or machines.

Left Hand Dies also available for left hand threads.

HSS HEX Dienuts for general purpose repairing and cleaning of threads. Available on request for Left Hand Threads.

If your size requirement is not listed please enquire all Dies and Die nuts can be sourced.

Part No.

Description

 

Shank Dia.

Threads Per Inch

Price

NPT-1/16-D

1/16 NPT HSS Die

 

0.000

27

£87.09

NPT-1/8-D

1/8 NPT HSS Die x1 OD

 

0.000

27

£31.25

NPT-1/8-DN

1/8 NPT HSS Die Nut

 

0.000

27

£16.85

NPT-1/4-D

1/4 NPT HSS Die

 

1.313

18

£37.13

NPT-1/4-DN

1/4 NPT HSS Die Nut

 

0.000

18

£37.71

NPT-3/8-D

3/8 NPT HSS Die

 

0.000

18

£48.57

NPT-3/8-DN

3/8 NPT HSS Die Nut

 

0.000

18

£33.39

NPT-1/2-D

1/2 NPT HSS Die x 2"OD

 

0.000

14

£48.53

NPT-1/2-DN

1/2 NPT HSS Die Nut

 

0.000

14

£66.57

NPT-3/4-D

3/4 NPT HSS Die

 

0.000

14

£82.08

NPT-3/4-DN

3/4 NPT HSS Die Nut

 

0.000

14

£92.88

NPT-1-D

1in NPT HSS Die

 

0.000

11

£179.19

NPT-1-DN

1in NPT HSS Die Nut

 

0.000

12

£138.35

NPT-2-D

2 NPT HSS Die x 4"OD

 

0.000

0

£167.85

NPT-1.1/4-D

1.1/4 NPT HSS Die x 3"OD

 

0.000

0

£167.85

Part No.

Description

 

Shank Dia.

Threads Per Inch

Price

NPT-1-1/4-DN

1-1/4 NPT HSS Die Nut

 

0.000

12

£157.66

NPT-1.1/2-D

1.1/2 NPT HSS Die

 

0.000

12

£256.08

NPT-1.1/2-DN

1.1/2 NPT HSS Die Nut

 

0.000

12

£256.08