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 alsobe produced by taking a second pass from the opposite side of the workpiece. Dimensions: D=31.7 mm C=5/8 inch C=15.9 mm B=9.5 mm B2=12.7 mm R=9.5 mm R=3/8 inch Shank Diameter=1/2 inch Shank Diameter: 1/2 Grade: TCT Diameter Metric: 31.7 Cut Length Imperial: 5/8 Cut Length Metric: 15.9 Bearing Diameter Metric: 9.5