[CNCchat]

Hello,
I am looking for the smallest diameter router bit available for a CNC machine. What is the smallest router bit you can buy? I'm cutting designs in wood that have some pretty small details. Thanks for your help!

[CalvinRichards]

Hello, Here I can buy the smallest woodworking router bits as follows:
Drill Diameter: 2mm
Shank Diameter: 6mm
Cutting Flute: 2

It's a TCT straight router bits.
If 2mm drill diameter is okay, you can check more information by this link:
https://www.konetool.com/Double-Flut...outer-Bit.html

What drill diameter can fit your work?

[TDHofstetter]

It's easy to find 0.4mm end mills for sale.

Trust me, they're much smaller than you could possibly use in your projects.

If they're not, by some magic, I can look around casually and find smaller ones... to the tune of 0.1mm. If you cough while the mailman is delivering them to your house, they'll arrive broken.