Trend C077X1/4TC Rounding over 7.9mm radius x 12.7mm 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=28.5 mmC=1/2 inchC=12.7 mmB=9.5 mmB2=12.7 mmR=5/16 inchR=7.9 mmShank Diameter=1/4 inch