The Kreg Trim Router Circle Guide KRTCG100 allows a trim router to cut accurate circles and smooth arcs with controlled, repeatable results. It controls the router’s pivot point to produce clean, repeatable radius cuts without freehand variation.

The clear base plate improves visibility of the bit and cut line while adding stability during routing passes. Laser‑etched markings support precise diameter setup, making it easier to repeat cuts across multiple parts without re‑measuring. Pin holes support both interior and exterior diameter cutting, expanding layout options without adding setup complexity.

This guide makes it easy to cut circles from 3-1/2" to 52" in diameter. When not used for circle cutting, the guide functions as a stable base plate for edge routing. The integrated handle improves control during longer passes, helping maintain steady movement along the workpiece edge. This dual‑purpose design extends trim router capability while keeping the tool compact and manageable.