What Rails Are Compatible with the Milwaukee M18FCSG66 Circular Saw?
The Milwaukee M18FCSG66 (also known as the M18 Fuel 190mm Circular Saw) is a powerhouse on site delivering corded-level performance with the convenience of the M18 battery platform. But one common question UK users ask is:
“What guide rails are compatible with this saw?”
Let’s break it down with everything you need to know about rail compatibility.
Is the M18FCSG66 Rail-Compatible Out of the Box?
No, not directly.
The M18FCSG66 is not designed to run natively on guide rails without an adapter. However, with the right accessories, it can be used effectively with rails for more accurate straight-line cuts.
Rail Options for the M18FCSG66
1. Milwaukee Guide Rail Adapter Kit (DEK26 Rail Kit)
Milwaukee does not currently offer a proprietary rail system in the UK. However, their DEK26 guide rail adapter allows you to mount the M18FCSG66 to common rail systems.
✅ Works with:
- Festool rails (FS series)
- Makita rails
- Bosch FSN rails (with slight modification)
❗ Note: Compatibility may vary depending on base plate and trimming requirements.
2. Third-Party Adapter Plates
There are a few third-party rail adapter bases available in the UK from brands like:
- Bessey
- Trend
- Axminster
These allow your M18FCSG66 to run on Makita or Festool-style rails. Be sure to verify base plate compatibility or look for aftermarket universal bases.
Tips for Straight Cuts Without a Rail
If you don’t have a rail system, you can still get accurate cuts using:
- A straight edge clamp (e.g. BORA clamp guides)
- A homemade plywood guide track
While not as precise as a full rail, these methods still improve cut quality over freehand.
Final Verdict
The Milwaukee M18FCSG66 is not rail-ready out of the box, but you can make it rail-compatible using the Milwaukee DEK26 adapter or third-party accessories. The best rails to use are typically Festool or Makita tracks, thanks to their availability and quality.
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