How to use the OmniArc Circle Cutter Ruler to Cut Spheres and Rings

#omnigrid Use the non-slip OmniArc(TM) Circle Cutter for quilting, sewing and crafts projects requiring circles. Handy grooves and easy-to-read angle markings allow you to create spheres with a finished diameter of 4”, 6”, 8” 10” or 12”. The ruler can al