Easy Wood Tools Ci2 R2 2 in. Radius Carbide Cutter is a razor sharp carbide cutter designed specifically for the Ci2 Mini and Ci2 Mid-Size Roughers. This cutter features a reduced size for roughing down smaller projects, making it an excellent choice for pen making. It adds a slight curve to cutting edges, measuring 7/16" x 7/16". Please note that except for the tools mentioned above, this cutter is not interchangeable with any other Easy Wood Tool or tools of other brands. Model Number: 2600