Abstract: Blades for tire rasps are disclosed in which the outer edge of their teeth have cutting edges inclined at a positive rake angle and cooperating buffing edges inclined at a negative rake angle, the teeth having other similarly inclined cutting and buffing edges at levels inwardly of the original outer tooth edge to which the teeth may be sharpened as the original cutting and buffing edges become worn.

Abstract: Manual tool used for trimming mold flash and protuberances from a tire has a handle with ends which are slotted to receive mounting flanges of a undulated sheet metal blade. The blade is so folded that its undulations comprise closely spaced ridges which extend from front to rear, are open on their underside and are united by narrow intervening webs. The underside of the lead edge of the blade is sloped along an arc and/or angle providing the blade with recesses in said leading edge between the ridges. The recesses have sharp cutting edges which cut entering flash close to the tire surface, the open under side of the ridges on either side of the webs providing clearance for missed flash and trimmings so that the tool blade is not raised off the tire surface in use of the tool.

Abstract: Replaceable blades have an inner generally planar portion which is mounted between imperforate spacers of a tire buffing machine hub and an outer working edge portion which protrude beyond said spacers. Said working edge portion has spaced teeth and means in the form of apertures located adjacent the base of the teeth and outwardly of the perimeter of said spacers for collection and direction of air and/or externally applied moisture in rotation of the hub. In some of the disclosed forms the trailing edge of the apertures is embossed or otherwise scoop shaped for increased collection capability and/or capacity.

Abstract: Tire rasp is disclosed for a tire buffing machine in which the blades and spacers are removably assembled in holders which in turn are removably assembled between the top and base plates of a hub comprising the tire rasp. Each holder and its assembly of blades and spacers are separately removable from the reversible in the tire rasp hub.