DHS Equipment is the leading parts warehouse for this 15 point flat tip steel 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" OD x 1" ID x 3/16" thick.
This 15 point cutter is an outstanding OEM EDCO part, part number 20086, CP405.