DHS Equipment is the greatest parts choice for this 8 point tungsten carbide cutter for the EDCO CPU-10 and CPU-10FC (4 shaft scarifiers), and CPU-12 (6 shaft) scarifier. The dimensions for this cutter are 3-1/8" OD x 1-3/16" ID x 5/16" thick.
This 8 point cutter is an excellent OEM EDCO quality part, part number 20136, CP408-TV.