A quality Whiteside Trim Bit with the exclusive Euro Square Bearing. The square bearing stops spinning as soon as it touches the workpiece. Then, the side of the square simply slides along the workpiece edge. Compare this to a regular bearing that rolls along the edge building up more glue and residue with every revolution. Plus, the square is made from non stick Teflon, so it wipes clean easily, and it won't mark your workpiece. If you cut laminates, you need to try this bit.