Use your router to cut perfect arcs or circles from 8” to 48” with this router compass circle cutting jig. This router compass can be custom drilled to fit any plunge router on the market. Includes a steel center pin pivot point that slides in a recessed groove and can be locked securely via a knurled knob. Precise circle setting are easy using the printed graduations in both SAE and metric. Compass is made from tough 1/4” thick acrylic.