7866 Edco 6 Shaft Scarifier Cutters by Edco Cutter Description CP308-T 8 Point, Tungsten Carbide2 1/4″ OD x 3/4″ ID x 1/4″ Thick CP404-P6 15 Point Pointed, Steel2 3/8″ OD x 3/4″ ID x 3/16″ Thick CP404 10 Point Flat Tip,Steel2 3/8″ OD x 1″ ID x 3/16″ Thick . Posted in Edco, Edco Scarifier & Scabblers, Shop by Brand