A stump grinding tool includes a rotary cutting wheel having a pair of side
surfaces and an outer peripheral surface. Cutting assemblies are mounted
on the cutting wheel, each cutting assembly including first and second
pockets disposed on respective side surfaces of the wheel. Each pocket
includes a leading through-hole and a trailing through-hole aligned with
respective leading end trailing through-holes of the other pocket for
receiving a pair of cutting teeth. Each tooth extends through aligned
through-holes of the pocket and cutting wheel in mutually opposite
directions, wherein cutting elements of the teeth are disposed adjacent
respective ones of the side surfaces. Each tooth is fixed by a nut
threaded thereon such that each tooth and associated nut functions to
clamp both of the first and second pockets against the respective
side-surfaces of the cutting wheel.