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Pipe Dies

NPT Taper High Speed Round Pipe Dies

NPT Taper High Speed Round Pipe DiesClick for a Bigger Picture
High Speed Steel. Round, split, adjustable dies.

For cutting NPT (tapered) pipe threads.

Follow this link to see the corresponding Pipe Taps for these Dies..

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Pipe Size Threads per Inch Die O.D.

$9.30 RDPT-1/16-B
1/16-27 NPT 1" OD HS Pipe Die 1/16" NPT 27 1"

$9.30 RDPT-1/8-B
1/8-27 NPT 1" OD HS Pipe Die 1/8" NPT 27 1"

$17.10 RDPT-1/8-C
1/8-27 NPT 1-1/2" OD HS Pipe Die 1/8" NPT 27 1-1/2"

$17.10 RDPT-1/4-C
1/4-18 NPT 1-1/2" OD HS Pipe Die 1/4" NPT 18 1 1/2"

$17.10 RDPT-3/8-C
3/8-18 NPT 1-1/2" OD HS Pipe Die 3/8" NPT 18 1 1/2"

$31.70 RDPT-1/2-D
1/2-14 NPT 2" OD HS Pipe Die 1/2" NPT 14 2"

$31.70 RDPT-3/4-D
3/4-14 NPT 2" OD HS Pipe Die 3/4" NPT 14 2"

$51.00 RDPT-1-E
1"-11 1/2 NPT 2-1/2" OD HS Pipe Die 1" NPT 11 1/2 2-1/2"

$94.00 RDPT-1-1/4--F
1 1/4"-11 1/2 NPT 3" OD HS Pipe Die 1 1/4" NPT 11 1/2 3"

$94.00 RDPT-1-1/2-F
1 1/2"-11 1/2 NPT 3" OD HS Pipe Die 1 1/2" NPT 11 1/2 3"

$216.00 RDPT-2-H
2"-11 1/2 NPT 4" OD HS Pipe Die 2" NPT 11 1/2 4"

$295.00 RDPT-2-1/2-I
2 1/2"-8 NPT 5" OD HS Pipe Die 2 1/2" NPT 8 5"

$295.00 RDPT-3-I
3"-8 NPT 5" OD HS Pipe Die 3" NPT 8 5"

NPS Straight Pipe Dies

NPS Straight Pipe DiesClick for a Bigger Picture
High Speed Steel. Round, split, adjustable dies.

For cutting NPS (straight) pipe threads.

Besides use on pipes, NPS threads are frequently found on lamps and lighting fixtures.
You may see them descrined as 1/8 IPS or 1/4 IPS.

The actual size of the thread is larger than the "nominal" size.
For example, 1/8-27 NPS threads are 5/16" (.3125") in diameter.

Follow this link to see the corresponding Pipe Taps for these Dies..

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Pipe Size Threads per Inch Die O.D. Appx. Thread Diam.

$9.30 RDPS-1/16-B
1/16-27 NPS 1" OD HS Pipe Die 1/16" NPS 27 1" .3125"

$9.30 RDPS-1/8-B
1/8-27 NPS 1" OD HS Pipe Die 1/8" NPS 27 1" .405"

$17.10 RDPS-1/8-C
1/8-27 NPS 1-1/2" OD HS Pipe Die 1/8" NPS 27 1-1/2" .405"

$17.10 RDPS-1/4-C
1/4-18 NPS 1-1/2" OD HS Pipe Die 1/4" NPS 18 1-1/2" .54"

$17.10 RDPS-3/8-C
3/8-18 NPS 1-1/2" OD HS Pipe Die 3/8" NPS 18 1-1/2" .675"

$17.10 RDPS-1/2-C
1/2-14 NPS 1-1/2" OD HS Pipe Die 1/2" NPS 14 1-1/2" .840"

$31.70 RDPS-1/2-D
1/2-14 NPS 2" OD HS Pipe Die 1/2" NPS 14 2" .840"

$31.70 RDPS-3/4-D
3/4-14 NPS 2" OD HS Pipe Die 3/4" NPS 14 2" 1.05"

$51.00 RDPS-1-E
1"-11 1/2 NPS 2-1/2" OD HS Pipe Die 1" NPS 11 1/2 2-1/2" 1.315"

$94.00 RDPS-1-1/4-F
1 1/4"-11 1/2 NPS 3" OD HS Pipe Die 1 1/4" NPS 11 1/2 3" 1.66"

$112.00 RDPS-1-1/2-F
1 1/2"-11 1/2 NPS 3" OD Pipe Die 1 1/2" NPS 11 1/2 3" 1.9"

$241.00 RDPS-2-H
2"-11 1/2 NPS 4" OD HS Pipe Die 2" NPS 11 1/2 4" 2.375"

NPT Carbon Steel Hex Dies

NPT Carbon Steel Hex DiesClick for a Bigger Picture
Carbon Steel Hex Pipe Dies for National Pipe Taper threads.
For cleaning or repairing existing NPT threads.
Can be used with a common adjustable wrench.

Follow this link to see the corresponding Pipe Taps for these Dies..

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Size

$4.70 HDPT-1/8
1/8-27 NPT Carbon Steel Hex Die 1/8-27

$5.20 HDPT-1/4
1/4-18 NPT Carbon Steel Hex Die 1/4-18

$7.20 HDPT-3/8
3/8-18 NPT Carbon Steel Hex Die 3/8-18

$9.40 HDPT-1/2
1/2-14 NPT Carbon Steel Hex Die 1/2-14

$12.50 HDPT-3/4
3/4-14 NPT Carbon Steel Hex Die 3/4-14

$24.60 HDPT-1
1-11 1/2 NPT Carbon Steel Hex Die 1"-11 1/2

$32.70 HDPT-1-1/4
1 1/4-11 1/2 NPT Carbon Steel Hex Die 1 1/4"-11 1/2

$40.30 HDPT-1-1/2
1 1/2-11 1/2 NPT Carbon Steel Hex Die 1 1/2"-11 1/2

$88.00 HDPT-2
2"-11 1/2 NPT Carbon Steel Hex Die 2"-11 1/2

$154.00 HDPT-2-1/2
2 1/2-8 NPT Carbon Steel Hex Die 2 1/2"-8

Die Stocks For Adjustable Round Split Dies

Die Stocks For Adjustable Round Split DiesClick for a Bigger Picture
Die Stocks for holding round threading dies.
Straight-arm die stocks for manual threading.

A 1" Die Stock holds 1" Outside Diameter (OD) dies, a DS-2 holds 2" OD dies, etc.

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Holds Dies of OD: Approx. Length:

$3.90 DS-5/8
5/8" Die Stock 5/8" 5.5"

$3.90 DS-13/16
13/16" Die Stock 13/16" 6.25"

$4.90 DS-1
1" Die Stock 1" 8.6"

$7.00 DS-1-1/2
1-1/2" Die Stock 1 1/2" 12"

$9.50 DS-2
2" Die Stock 2" 19.5"

$15.50 DS-2-1/2
2-1/2" Die Stock 2 1/2" 19"

$24.50 DS-3
3" Die Stock 3" 21.75"

$47.00 DS-4
4" Die Stock 4" 29.25"

$93.00 DS-5
5" Die Stock 5" 33"