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Cleveland pipe tap 1/8-27 NPTF 4-flute semi-bottoming high-speed steel TiN coated

Cleveland

Cleveland C55682 Pipe Tap 1/8"-27 NPTF 4 Flutes Semi-Bottoming

SKU CH-HKBK-SQRHP

Cuts 1/8"-27 NPTF internal threads with a 4-flute semi-bottoming design in high-speed steel

  • TypeTaps
  • Cuts precise NPTF threads with 4-flute semi-bottoming design
  • High-speed steel construction with TiN coating resists wear
  • 1/8"-27 thread size matches standard pipe fittings
  • 75% thread engagement ensures strong sealed connections
  • Right-hand cutting orientation suits conventional tapping operations

Cleveland C55682 Pipe Tap 1/8"-27 NPTF

The Cleveland C55682 is a pipe tap designed to cut internal NPTF threads in pipe and conduit fittings. It is made from high speed steel with a TiN coating for wear resistance. The tool has four flutes and a semi-bottoming chamfer for threading close to the bottom of a hole. It suits maintenance technicians and pipefitters creating pressure-tight joints.

Mechanics cutting 1/8"-27 NPTF threads

This tap suits mechanics cutting 1/8"-27 NPTF threads in metal pipe and conduit where a 75 percent thread depth is required. The right-hand cutting direction matches standard pipe threads. The semi-bottoming design allows threading near the bottom of a blind hole. It is not for buyers who need a taper or plug chamfer for easier starting in through-holes. It is not for users who require a different thread standard or size.

1/8"-27 NPTF thread size

The single specification that decides fit is the 1/8"-27 NPTF thread size. The tap creates a National Pipe Taper Fuel thread with 27 threads per inch. A 75 percent thread drill size Q is needed to prepare the hole. The thread length is 3/4 in and the overall length is 2 1/8 in. Verify the thread standard and size against the fitting before use.

Highlights

  • Cuts precise NPTF threads with 4-flute semi-bottoming design
  • High-speed steel construction with TiN coating resists wear
  • 1/8"-27 thread size matches standard pipe fittings
  • 75% thread engagement ensures strong sealed connections
  • Right-hand cutting orientation suits conventional tapping operations

Specifications

BrandCLEVELAND
TypeTaps

Questions about this item

What drill size is needed before tapping with the 1/8"-27 NPTF tap?

Use a size Q drill to create a 75 percent thread before running the Cleveland C55682 tap.

Will the TiN coating on this tap hold up when I use it on older steel pipe fittings?

The TiN coating on the high-speed steel flutes resists wear and heat when cutting into existing steel pipe threads.

How can I confirm the tap is cutting the correct NPTF thread form after setup?

Check that the thread gauge engages fully and the 4-flute tap produces clean, consistent threads at the 3/4 in thread length.

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