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Westward 1/2"-14 NPTF pipe tap, bright steel, four flutes

Westward

Westward 5TWX1 Pipe Tap 1/2"-14 Semi-Bottoming 4 Flutes NPTF

SKU CH-B245-M3MVM

Creates internal NPTF pipe threads in a 1/2"-14 size with a four-flute semi-bottoming design for through-hole tapping

  • Product typeHole, Drill, Bore & Wire Gauges
  • 1/2"-14 NPTF pipe threads cut cleanly with four-flute design
  • Semi-bottoming chamfer starts threads easily in blind holes
  • High-speed steel construction resists wear during repeated tapping
  • Right-hand cut matches standard pipe-fitting requirements
  • 75 % thread drill size .7031 in ensures accurate hole preparation

Westward 1/2"-14 NPTF Pipe Tap

This Westward pipe tap cuts internal threads in pipe and conduit fittings. It suits plumbers, pipefitters and maintenance technicians who need reliable NPTF threads for pressure-tight joints. The semi-bottoming design allows threading close to the bottom of blind holes. Four flutes provide smooth chip evacuation during operation.

Thread specification 1/2"-14 NPTF

The tap produces a 1/2 inch nominal pipe size with 14 threads per inch to the NPTF standard. Class of fit is 3B for accurate thread engagement. Thread length measures 1 3/8 inches and overall length is 3 1/8 inches. The recommended 75 percent thread drill size is .7031 inches for proper hole preparation before tapping.

High-speed steel construction and cutting action

Bright uncoated high-speed steel resists wear during hand or machine tapping. Right-hand cutting direction matches standard pipe-threading practice. Four flutes distribute cutting load evenly, reducing torque and heat buildup. The semi-bottoming chamfer minimises chatter and produces clean threads with consistent depth.

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Price $23.99
Typical for this category: the median of 2,474 items is $23.99.

Specifications

Product
Brand nameWestward
Product typeHole, Drill, Bore & Wire Gauges

Questions about this item

What does the 1/2"-14 thread size mean for the holes I tap?

It cuts a 1/2 inch nominal pipe thread with 14 threads per inch to the NPTF standard, creating a dry-seal taper thread for pipe and conduit connections.

How does the NPTF standard affect the threads this tap produces?

NPTF threads are designed to seal without sealant; the taper and thread form create a mechanical seal when mated with an NPTF fitting.

What drill size and clearance do I need for this 4-flute semi-bottoming tap?

Use a 0.7031 inch drill for 75 percent thread; the tap has a 1 3/8 inch thread length and 3 1/8 inch overall length, so ensure the hole depth accommodates that.

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