Self-guiding cutters for rounding over edges do not require a side fence. They are supplied with two bearings. Use the larger bearing for a round-over. If the cutter is lowered, a top quirk can be produced. Bullnose mouldings can also be produced by taking a second pass from the opposite side of the workpiece. D=38.0 mm. Cut length=3/4 inch. Cut length=19.1 mm. B=9.5 mm. B2=12.7 mm. R=1/2 inch. R=12.7 mm. Shank Diameter=1/4 inch.