Park Tool Thru Axle Tap
Thru Axle Tap
Thru Axle Tap
Park Tool

Park Tool Thru Axle Tap

$85.95
In Stock

Precision-ground Park Tool TAP-20.1 cleans and restores 20mm x 1.0mm thru-axle threads in forks and frames. Industrial-strength construction fits conventional tap handles for reliable, shop-grade thread care.

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Available Options

Option Price Availability
Park Tool, 20.1, Thru axle tap, 20mm x 1.0mm $85.95 In Stock
Park Tool, 20.2, Thru axle tap, 20mm x 1.5mm $86.95 In Stock
Park Tool, 20.3, Thru axle tap, 20mm x 2.0mm $86.95 In Stock

Product Details

Overview & Technology

Park Tool TAP-20.1 is a shop-grade thru axle tap engineered to quickly clean and restore 20mm x 1.0mm threaded holes in forks and frames. The tool is precision-ground for accurate thread profile reproduction so you can chase damaged or contaminated threads without removing metal unnecessarily. The TAP-20.1 is built from industrial-strength, precision-ground tool steel with a hardened finish to withstand repeated use in busy workshops. Its shank accepts conventional tap handles and T-handles, giving you the mechanical control to keep the tap perfectly aligned while working on delicate fork or frame threads.

Key Features & Benefits

Designed for real-world maintenance: The TAP-20.1 cuts a clean 20mm x 1.0mm thread profile to remove corrosion, contamination, and light cross-threading. That restores proper axle engagement and helps eliminate creaks, stiction, and misalignment caused by poor thread contact. Durable construction and easy handling: Precision-ground geometry ensures consistent results while the hardened tool steel construction stands up to repeated tapping in aluminum and steel components. Fits standard tap handles so you can use the handle you trust for best leverage and alignment.

Fit, Compatibility & Use

The TAP-20.1 is specifically sized for 20mm diameter thru-axle threads with a 1.0mm pitch. It is intended for cleaning and re-establishing threads in forks and frames engineered for this size. Confirm your axle diameter and pitch before use—this tap will not fit 20mm x 1.5mm or 20mm x 2.0mm pitch variants (see TAP-20.2 and TAP-20.3). For best results mount the tap in a straight tap handle or T-handle, use light cutting oil or lubricant, and keep alignment strictly axial to avoid enlarging or mis-shaping the thread. The TAP-20.1 is suitable for use on aluminum and steel components when used as a chase (cleaning) tap; severely damaged or stripped threads may require helicoils or professional rethreading.

Who This Tool Is For

Mechanics, home wrenchers and bike shops who service mountain bikes with 20mm thru-axles will appreciate the TAP-20.1. If you encounter seized, dirty or lightly damaged thru-axle threads on forks or frames, this tap saves time and parts by restoring correct thread engagement. It's ideal for anyone who wants a durable, precise thread-care tool that fits standard tap handles and integrates into a regular maintenance workflow. Not a universal solution for heavily stripped threads, but an essential maintenance and preventative tool for most trail and workshop scenarios.

Key Features

  • ✓ Precision-ground 20mm x 1.0mm thread profile for accurate chasing
  • ✓ Industrial-strength, hardened tool steel construction for durability
  • ✓ Fits conventional tap handles and T-handles for controlled use
  • ✓ Clears corrosion, grit, and light cross-threading in forks/frames
  • ✓ Compact 4.5" shipping length — easy to store in a tool roll
  • ✓ Ideal for shop and home mechanics servicing 20mm thru-axles
  • ✓ Prevents axle misalignment and eliminates thread-bound creaks

Specifications

Misc 20mm x 1.0mm

Product Identifiers

Vendor Item # TAP-20.1
UPC 763477007728

Frequently Asked Questions

What does 20mm x 1.0mm mean?

20mm x 1.0mm indicates the tap is sized for threads with a 20 millimetre outer diameter and a 1.0 millimetre thread pitch. That combination must match the threaded hole in your fork or frame for the tap to fit and cut correctly.

Can I use this tap on aluminum and steel threads?

Yes. The TAP-20.1 is designed to chase both aluminum and steel threads. Use light cutting oil and gentle pressure when working aluminum to avoid removing excess material; the tap is best used to clean and restore, not to re-cut heavily damaged threads.

Will this fix stripped threads?

This tap can restore threads that are dirty, corroded, or lightly cross-threaded. Severely stripped or missing threads typically require a helicoil, threaded insert, or professional rethreading—this tap is not a substitute for structural thread repair.

How do I use the tap safely?

Mount the tap in a straight tap or T-handle, apply light cutting oil, and start slowly to ensure it is perfectly aligned. Turn forward a few turns, then back it off to clear chips; keep the tool axial to avoid changing the thread geometry.

How is TAP-20.1 different from TAP-20.2 and TAP-20.3?

They differ by thread pitch. TAP-20.1 is 20mm x 1.0mm, TAP-20.2 is 20mm x 1.5mm, and TAP-20.3 is 20mm x 2.0mm. Use the exact pitch that matches the threaded hole on your fork or frame.

Does the tap include a handle or case?

No—Park Tool supplies the precision tap itself. It fits conventional tap handles and T-handles which are commonly available in workshop tool sets; store the tap in a protective pouch to preserve the cutting edges.

Buying Guide

When choosing a thru axle tap, confirm both the diameter and thread pitch of your axle interface. Park Tool offers the TAP-20.1 for 20mm x 1.0mm threads and adjacent pitch variants—select the exact pitch to avoid mismatches that could damage threads. Consider whether you need a chase (cleaning) tap or a full-cutting rethreading tool: chase taps like the TAP-20.1 are ideal for maintenance and light repairs. For heavy damage, budget for helicoils or professional rethreading services. Pair the tap with a straight or T-handle and cutting oil for safe, accurate results.

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