Westalee 12 inch Arc Template
This 4.5 mm thick circle-based template from Westalee features a convex and concave curve based upon the curve of a 12 inch diameter circle. Use either side to create the same curve, which is especially useful for positioning the ruler. Easy to see etched markings run parallel to the edges and have the same 12" arc curve. Additional markings show the center and 45 degree positions.