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Best pipe taps, ranked

AI-generated summary · updated September 10, 2026 · verify details before purchase.

  1. Irwin Hanson 1/4-20 HSS Pipe Tap
    Best overall IRWIN

    Irwin Hanson 1/4-20 HSS Pipe Tap

    4.6/5 $7.59

    High-quality HSS construction for clean threads in iron and steel; widely trusted for reliability and durability.

    • Sharp and precise threads
    • Durable HSS material
    • Good value for money
    • May chip on hard steel
  2. Vermont American 1/2-14 NPT Pipe Tap
    Best for standard NPT threading Drill America

    Vermont American 1/2-14 NPT Pipe Tap

    4.5/5 $12.32

    Premium carbon steel tap for general-purpose threading in pipe; known for consistent cut and long life.

    • Consistent performance
    • Affordable price
    • Good for soft metals
    • Not for hardened steel
  3. Bosch B3353 3/8-18 NPT Pipe Tap
    Best professional grade Bosch

    Bosch B3353 3/8-18 NPT Pipe Tap

    4.7/5 $15.87

    High-speed steel tap from Bosch; delivers smooth, accurate threads and excellent chip clearance.

    • Smooth operation
    • Excellent chip clearance
    • Long-lasting edge
    • Slightly more expensive
  4. MSC Industrial Supply 1/8-27 NPT Pipe Tap
    Best budget pick RURITKIT

    MSC Industrial Supply 1/8-27 NPT Pipe Tap

    4.4/5 $16.99 Only 1 left

    Economical carbon steel tap for light-duty applications; reliable for occasional use on soft materials.

    • Very affordable
    • Suitable for DIY
    • Decent sharpness
    • Wears faster on hard metals
  5. Viking Drill 1/4-18 NPT Pipe Tap
    Best value Drill America

    Viking Drill 1/4-18 NPT Pipe Tap

    4.5/5 $8.46

    Good balance of quality and price; suitable for general threading in pipe and fittings.

    • Good chip evacuation
    • Strong build
    • Versatile use
    • May need lubrication
  6. Greenfield Threading 3/4-14 NPT Pipe Tap
    Best for heavy-duty Greenfield Threading

    Greenfield Threading 3/4-14 NPT Pipe Tap

    4.8/5 $104.97 Currently unavailable

    Industrial-grade HSS tap with optimized flute geometry; ideal for stainless steel and tough alloys.

    • Cuts tough metals
    • Precision ground
    • Long tool life
    • Higher price point

What to consider before buying

When selecting a pipe tap, consider the material you'll be threading (e.g., carbon steel for soft metals, HSS for harder alloys) and the NPT size needed. Ensure proper lubrication during use to extend tap life and achieve clean threads. For heavy-duty or frequent use, invest in a premium HSS or cobalt tap.

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