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Straight Pipe Taps and Dies

NPS Straight Thread HS Pipe Taps

Straight Pipe Taps. Ground Threads. High Speed Steel.

For cutting NPS (straight) pipe threads.

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

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

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

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

$7.90 NPS-1/16
1/16"-27 NPS HS Straight Pipe Tap 0343-0003 1/16 - 27 -- .3125"

$8.90 NPS-1/8
1/8"-27 NPS HS Straight Pipe Tap 0343-0006 1/8 - 27 S .405"

$9.90 NPS-1/4
1/4"-18 NPS HS Straight Pipe Tap 0343-0011 1/4 - 18 29/64" .54"

$13.50 NPS-3/8
3/8"-18 NPS HS Straight Pipe Tap 0343-0016 3/8 - 18 19/32" .675"

$21.80 NPS-1/2
1/2"-14 NPS HS Straight Pipe Tap 0343-0021 1/2 - 14 47/64" .840"

$31.60 NPS-3/4
3/4"-14 NPS HS Straight Pipe Tap 0343-0026 3/4 - 14 15/16" 1.05"

$48.50 NPS-1
1"-11 1/2 NPS HS Straight Pipe Tap 0343-0031 1 - 11 1/2 1-3/16" 1.315"

$85.50 NPS-1-1/4
1 1/4"-11 1/2 NPS HS Straight Pipe Tap 0343-0036 1 1/4 - 11 1/2 1-33/64" 1.66"

$121.00 NPS-1-1/2
1 1/2"-11 1/2 NPS HS Straight Pipe Tap 0343-0041 1 1/2 - 11 1/2 1-3/4" 1.9"

$162.00 NPS-2
2"-11 1/2 NPS HS Straight Pipe Tap 0343-0046 2 - 11 1/2 2-7/32" 2.375"

$306.00 NPS-2-1/2
2 1/2"-8 NPS HS Straight Pipe Tap 0343-0050 2 1/2 - 8 2-21/32" 2.875"

$471.00 NPS-3
3"-8 NPS HS Straight Pipe Tap 0343-0055 3 - 8 3-9/32" 3.5"

$560.00 NPS-3-1/2
3-1/2"-8 NPS HS Straight Pipe Tap 0343-0060 3-1/2 - 8 - -

NPS Straight Pipe Dies

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, 1/16-27 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 HSS Pipe Die 0505-0200 1/16" NPS 27 1" .3125"

$9.30 RDPS-1/8-B
1/8-27 NPS 1" OD HSS Pipe Die 0505-0205 1/8" NPS 27 1" .405"

$17.10 RDPS-1/8-C
1/8-27 NPS 1-1/2" OD HSS Pipe Die 0505-0300 1/8" NPS 27 1-1/2" .405"

$17.10 RDPS-1/4-C
1/4-18 NPS 1-1/2" OD HSS Pipe Die 0505-0305 1/4" NPS 18 1-1/2" .54"

$17.10 RDPS-3/8-C
3/8-18 NPS 1-1/2" OD HSS Pipe Die 0505-0310 3/8" NPS 18 1-1/2" .675"

$19.10 RDPS-1/2-C
1/2-14 NPS 1-1/2" OD HSS Pipe Die 0505-0315 1/2" NPS 14 1-1/2" .840"

$31.70 RDPS-1/2-D
1/2-14 NPS 2" OD HSS Pipe Die 0505-0360 1/2" NPS 14 2" .840"

$31.70 RDPS-3/4-D
3/4-14 NPS 2" OD HSS Pipe Die 0505-0365 3/4" NPS 14 2" 1.05"

$51.00 RDPS-1-E
1"-11 1/2 NPS 2-1/2" OD HSS Pipe Die 0505-0405 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 HSS Pipe Die 0505-0500 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 0505-0505 1-1/2" NPS 11-1/2 3" 1.9"

$241.00 RDPS-2-H
2"-11 1/2 NPS 4" OD HSS Pipe Die 0505-0560 2" NPS 11-1/2 4" 2.375"

Straight Tap Wrenches

Straight-arm tap wrenches.
Straight tap wrenches provide greater force than t-handle tap wrenches.

Follow this link to explore our complete offering of taps, dies, and other threading tools.
Quantity Price Model Description Hand Taps # Size Taps Pipe Taps MM Taps Approx. Length

$5.20 STW-A
1/16" - 1/4" Straight Tap Wrench 0373-0005 1/16" - 1/4" 0-14 - 1 -5mm 7"

$7.20 STW-B
1/16" - 3/8" Straight Tap Wrench 0373-0010 1/16" - 3/8" 4-14 1/16" 3 - 9mm 8"

$8.50 STW-C
5/32" - 1/2" Straight Tap Wrench 0373-0015 5/32" - 1/2" 7-14 1/16-1/8" 4 - 12mm 10-12" (varies)

$12.50 STW-D
3/16" - 3/4" Straight Tap Wrench 0373-0020 3/16" - 3/4" 10-14 1/16 - 1/4" 5 - 18mm 13"

$17.50 STW-E
1/4" - 1-1/8" Straight Tap Wrench 0373-0025 1/4" - 1 1/8" - 1/8 - 1/2" 6 - 28mm 19"

$54.00 STW-G
3/4" - 1-1/2" Straight Tap Wrench 0373-0050 3/4" - 1 1/2" - 3/8 - 1 1/4" 19 - 38mm 35"

$96.00 STW-H
1" - 2-1/2" Straight Tap Wrench 0373-0060 1" - 2 1/2" - 3/4 - 2" 25 -65mm 55"

Die Stocks For Adjustable Round Split Dies

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 0513-0295 5/8" 5.5"

$3.90 DS-13/16
13/16" Die Stock 0513-0003 13/16" 6.25"

$4.90 DS-1
1" Die Stock 0513-0005 1" 8.6"

$7.00 DS-1-1/2
1-1/2" Die Stock 0513-0010 1 1/2" 12"

$9.50 DS-2
2" Die Stock 0513-0015 GTS:372-164 2" 19.5"

$18.50 DS-2-1/2
2-1/2" Die Stock 0513-0020 2 1/2" 19"

$24.50 DS-3
3" Die Stock 0513-0030 3" 21.75"

$47.00 DS-4
4" Die Stock 0513-0300 4" 29.25"

$93.00 DS-5
5" Die Stock 0513-0305 5" 33"