Distal end honing device

A method of honing the interior surface of a bore hole comprising the steps of:

• a) providing a fluid supply system including a source of pressurized fluid;
• b) providing a honing device comprising:
• a honing body including a base extending along a longitudinal axis, the base including a distal end and a proximal end in fluid communication with the source of pressurized fluid, the honing body further comprising a plurality of leaves, each of the plurality of leaves including an outer surface, an inner surface, a first end attached to the distal end of the base and a second end spaced from the distal end, the outer surface of at least one of the plurality of leaves includes an abrasive work engaging surface, the plurality of leaves defining at least a portion of a cavity such that the inner surface of each of the leaves faces the cavity and the outer surface of each of the leaves faces away from the cavity, wherein the cavity is adapted to receive pressurized fluid from the source of pressurized fluid and wherein the second end of at least one of the plurality of leaves is adapted to move away from the longitudinal axis in response to pressurized fluid in the cavity to increase the effective working diameter of the honing device;
• c) inserting at least a portion of the honing device into the bore hole;
• d) rotating the device about the longitudinal axis;
• and
• e) selectively altering the fluid pressure in the fluid delivery system to alter the fluid pressure in the cavity for selectively modifying the effective working diameter of the honing device.