The multi sharp cylinder mower sharpener accurately re grinds sharp new cutting edges on the cylinder blades of most cylinder mowers whether hand electric battery or petrol operated including alko bosch einhell gardena ginge brill g tech handy husqvarna powerbase qualcast and the majority of other makes except webb attaches to the fixed bottom plate of the mower every cylinder mower has one while sharpening it works on the same principle as professional sharpening radial grinding replacement ab