A tyre rasp blade (A) made with an arcuate shape having a planar body (38) with cutting teeth (34) at the outer working edge. The cutting teeth extended laterally relative to the planar body in alternating sets of curved sections. The curved sections preferably form a sinusoidal curve (36) along the outer working edge. The tyre rasp blade is made by initially forming an arcuate blade of planar material that has an outer periphery of varying radii from a center point of the arcuate blade; then cutting teeth are formed at the varying radii of the working edge of the planar material; and then an outer portion of the planar material is deformed laterally in opposite directions to form alternating, oppositely curved sections, with the cutting teeth all lying approximately at the same circumferential radius (50) so that they all contact the tyre to be buffed.