Patent ID: 8096859

Claim:
A honing tool for honing a substantially cylindrical surface extending around and defining a hole in a workpiece, the tool comprising: an elongate radially expandable tubular member having a mounting end configured for attaching to a honing machine, and an opposite free end portion configured to be insertable into the hole in the workpiece, the tubular member including a radially outwardly facing outer cylindrical surface; at least one expander member located within the tubular member and movable relative thereto for radially expanding the tubular member in the hole of the workpiece; and wherein the outer cylindrical surface of the tubular member includes a longitudinally extending region thereabout including a first layer of abrasive particles of a first size bonded thereto, and wherein only a longitudinally limited portion of the first layer of the abrasive particles of the first size has a second layer of abrasive particles bonded thereto, substantially all of the abrasive particles of the second layer having a second size which is equal to about one-half the first size, and being located at least substantially within interstices between the particles of the first layer, such that the region of the outer cylindrical surface has a substantially uniform outer diameter.