What It Does:

• Helps you reinstall the negative sealhead on Fox Float air shafts (NA / NA2)
• Fits 10mm air shafts only
• Compatible with all Fox forks using NA and NA2 assemblies, including Fox 36, 38, and 40 (air-sprung)
• Used to press the negative sealhead evenly and safely during airshaft reassembly

Note: Required for Fox 38 NA2 rebuilds where the negative chamber is fully enclosed in a press-fit cylinder. Just to acces the negative chamber you need this tool..

How It's Made:
This tool is 3D printed in hard plastic and hand-sanded to exactly the good diameter to minimize friction. It's not as smooth as the OEM metal tool, but it works if you're careful.

Pro Tip: Use Slickoleum Grease, SRAM Butter, or light suspension grease generously when installing the sealhead to avoid sticking. It will stick more than metal but it will go.

Want the Real Deal?
You can buy the official-style metal NA2 bullet tool here on Amazon.
We recommend it if you plan to do multiple air shaft services. It slides more easily and is much more durable.

⚠️ Warnings & Disclaimers:
- This tool is designed for Fox air shaft service only. It will not work on other brands or damper shafts.
- Always release air pressure before service.
- See our Terms of Service for full legal disclaimers.

Helpful Resources:

• How to Clamp Small Shafts
• Essential Tools for Any Rebuild