Abstract: Rotary Vegetation Cutter is comprised of a housing, which is arranged for rotation about a central axis, having a plurality of cylindrical reel receiving cavities located in it with a line supply aperture passing between each cavity and the periphery of the housing. A supply reel is rotatably located in each cavity and a flexible non-metallic line has an inner portion which is wound around the reel and an outer portion which passes through the associated aperture and extends outwardly of the periphery of the housing. Wedge-shaped teeth located on one face of the reel are urged into engagement with like configured notches located in the cavity by a spring element, which is integral with the other face of the reel, to prevent rotation of the reel due to the centrifugal force on the line when the housing is rotated.