Trend 46/115X1/4TC Bearing guided ovolo cutter 1.6mm radiusWith alternative bearingSelf-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. A full round/bullnose for stair treads can also be produced by taking a second pass from the opposite side of the workpce.Specification-D=5/8 inchD=15.9 mmC=5/16 inchC=7.9 mmB=9.5 mmB2=12.7 mmR=1.6 mmShank Diameter=1/4 inch