CMT 235.006.07 Cove Cutter Head For 800.523.11 Crown Molding Set, 5/8-Inch Bore For Table Saws - The cove cutter mounts on your tablesaw and is used in conjunction with a pair of angled fences. Simply changing the fence angle and cutter height allows you to create an almost infinite variety of cove shapes and sizes. Best of all, the finished surface requires very little sanding.