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=38.0 mm C=3/4 inch C=19.1 mm B=9.5 mm B2=12.7 mm R=1/2 inch R=12.7 mm Shank Diameter=1/4 inch Shank Diameter: 1/4 Grade: TCT Diameter Metric: 38.0 Cut Length Imperial: 3/4 Cut Length Metric: 19.1 Bearing Diameter Metric: 9.5