Install a piloted 45-degree bit in a router, mount the tool in a table and set the cutting depth for a '/2-inch-wide chamfer. To prevent kickback, clamp a notched guide board to the table so its edge is in line with the bit's pilot bearing. Reinforce the guide with a support board. To indicate where the chamfer ends, mark a line across the top edge of the foot % inch from each end of the mortise. Feed the foot into the cutter, riding the stock along the guide board to start the pass, then pivot the workpiece away from the guide, making sure the stock butts against the bearing. Stop the cut at the chamfer line. Repeat on the other side of the mortise, then turn the foot over and chamfer the opposite face (left).
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