Trend C074BX1/4TC Rounding over 3.0mm radius x 9.5mm cut Bearing Guided Round Over & OvoloSelf-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 workpce.Specification-D=18.7 mmC=3/8 inchC=9.5 mmB=9.5 mmB2=12.7 mmR=3.0 mmShank Diameter=1/4 inch