Patent ID: 7100651

Claim:
A stump grinding disk comprising: a metallic wheel defining an axis of rotation and including a pair of side surfaces intersected by the axis, and a circumferential outer edge surface defining a largest diameter of the disk, the side surfaces spaced axially apart by a distance substantially shorter than the maximum diameter, the outer edge surface including a plurality of circumferentially spaced recesses, each recess extending axially completely through the disk from one side surface to the other side surface; a plurality of side cutting elements mounted on each side surface; a plurality of outer peripheral cutters spaced circumferentially apart around the outer edge surface; and wear strips mounted in respective ones of the recesses between circumferentially adjacent outer peripheral cutters, each wear strip including a metal matrix in which hard particles are disposed, each wear strip defining a radially inner surface affixed to the wheel, and a radially outer surface arranged substantially flush with adjacent portions of the outer edge surface.