We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Six high-speed steel pipe taps in wooden case

Drill America

Drill America DWTHS1/4-1-1/4SET 6Pc HSS NPT Pipe Tap Set

SKU CH-1MVG-A0MTC

Six-piece high-speed steel NPT pipe tap set covering 1/4 to 1-1/4 inch sizes in a wooden case

  • Cuts threads in ferrous and non-ferrous metals using National Pipe Taper standard
  • Tapered thread design seals with tape or compound for leak-resistant joints
  • Six taps cover common pipe sizes from 1/4 inch to 1-1/4 inch
  • High-speed steel construction resists wear during repeated threading operations
  • Supplied in a wooden case for organised storage and protection

6-Piece HSS NPT Pipe Tap Set

This six-piece set contains high-speed steel National Pipe Taper taps in sizes from 1/4 inch to 1-1/4 inch. The taps suit threading ferrous and non-ferrous materials and come organised in a wooden case. Each tap features a 2-1/2 to 3-1/2 thread chamfer for starting threads cleanly. The nominal size matches the pipe fitting to be tapped, not the tap diameter itself.

Check thread standards and sealing method

Verify that your project requires NPT threads with a 3/4 inch per foot taper. These taps do not produce straight threads or other pipe standards. You must use a thread sealer such as PTFE tape or pipe compound to achieve a leak-free joint. Confirm the workpiece material is compatible with high-speed steel cutting tools before starting.

Replaces individual carbon steel taps

The set upgrades from buying single carbon steel taps by covering the most common pipe sizes in one package. High-speed steel offers longer edge life when cutting tougher alloys. The jump is worth it for maintenance technicians and plumbers who regularly cut NPT threads in steel, stainless steel or brass and want consistent chamfer quality across sizes.

Highlights

  • Cuts threads in ferrous and non-ferrous metals using National Pipe Taper standard
  • Tapered thread design seals with tape or compound for leak-resistant joints
  • Six taps cover common pipe sizes from 1/4 inch to 1-1/4 inch
  • High-speed steel construction resists wear during repeated threading operations
  • Supplied in a wooden case for organised storage and protection

Specifications

BrandDRILL AMERICA

Questions about this item

What comes in the box and do I need to buy anything else to start threading?

The set includes six high-speed steel NPT pipe taps in sizes 1/4", 3/8", 1/2", 3/4", 1" and 1-1/4" inside a wooden case. NPT threads require a sealer such as teflon tape or pipe compound, which is not included.

How do I decide which tap size to use for a specific fitting?

The nominal size marked on each tap matches the pipe fitting it is meant to thread, not the actual tap diameter. Choose the tap that corresponds to the fitting size you are working with.

What does the 3/4 inch per foot taper mean when I am cutting threads?

The threads on every tap in this set narrow at a rate of 3/4 inch per foot of length. This taper creates the seal when the threaded joint is tightened with a sealer applied.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.