A cutter wheel for use with a stump cutter having a drive assembly includes a drive plate having first and second sides and a perimeter. A cutter is attached to one of the sides, the cutter having a contact surface configured to engage the side. The cutter has a leading surface and a trailing surface, and a leading mounting hole defining a leading axis and a trailing mounting hole defining a trailing axis. A reference line passes through the leading axis and the trailing axis. A portion of the perimeter of the drive plate is in a zone defined by: a pair of radial lines extending from the leading axis at angles of 20 degrees and 40 degrees radially outward from the reference line, and a pair of arcs 0.25 in. radially outward and inward, respectively, from the leading surface.
