Router Mount Adapter

(4 reviews) Write a Review
  • OpenBuilds® Router Mount Adapter  3040
  • OpenBuilds® Router Mount Adapter  3040
  • OpenBuilds® Router Mount Adapter  3040


The Router Reduction Sleeve has been created to broaden the use of available routers that can be used with most standard router mounts including the OpenBuilds Router/Spindle Mount.

With this solid aluminum reduction sleeve, you can reduce a 71mm router mount down to 65mm which opens the opportunity to use more routers with your machine.


  • Strong aluminum construction
  • Easy and Fast installation

What is Included

  • (1) Router Reduction Sleeve

Product Specifications

  • Inside Tube Diameter: 65mm 
  • Outside Tube Diameter: 71mm 
  • Material:  Aluminum
  • Finish: Mill

Assembly/Support/Documentation/3D Models

Easy follow along assembly video – top notch awesome community support – open source files and documentation and examples.

Support CAD Files

This design or build includes OpenBuilds®, LLC design work(s) shared Open Source under the CC BY-NC-SA 4.0 License

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4 Reviews

  • 5
    Good accessory

    Posted by Alain JBT on Feb 28th 2024

    Perfect adaptation on the OpenBuilds mounting kit and also on my original Genmitsu router support for my 65 mm Chinese Spindle. I installed 1 above and 1 below. Thank you OpenBuilds. Greetings from Switzerland

  • 5

    Posted by Shawn Hartwig on Apr 17th 2023

    Great product. I highly recommend getting this item if you are not using a Dewalt router. This adapter gives you a super secure mount. Carve with confidence!

  • 5
    perfect fit

    Posted by les adams on Jan 11th 2023

    perfect fit with opbuilds z bracket to carbide 3d router

  • 5

    Posted by Shameless on Aug 12th 2022

    This worked perfectly to fit my Makita RT0701C into the Open Builds router mount. It is a really nice aluminum piece with what feels like a soft bead blast finish on it. It's significant enough that it doesn't feel flimsy or cheap, and has a really nice tight tolerance. The lopped edge is excellent for ensuring the collar will not interfere with the mounting brackets that the router mount uses, and it doesn't interfere with the router mount LED ring attachment either.

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