Abstract: A pair of equal diameter circular plates with a free peripheral edge have aligned apertures for mounting them on the threaded end of an arbor. A chain saw chain rests on the peripheral edge of the plates and tang portions thereof which project between the plates secure the saw chain securely in place when the two plates are clamped together by a nut on the threaded end of the arbor. The blade of the invention which is formed thereby may be used in any application requiring a circular cutter blade and finds particular usefulness as a blade for hand held brush cutters.