BARREL SHAPED HOLE - Long stroke and reverse end for end.

OUT-OF-ROUND HOLE - The extra-large bearing surface of the Superior stones hones bushings perfectly round.

BELL MOUTH HOLE - Grind Superior stones 1/16" shorter than piece being honed. Short stroke in center and reverse, maintaining consistent stone pressure.

TAPERED HOLE - Stroke tight end and reverse to straighten and maintain parallelism.