With today’s geometry and materials used in router I highly recommend to sharpen them only with precision equipment. Since sharpening router bits changes the profile in subtle ways, be aware that if the bit is used for jointing, it is better to buy new ones. For example, if a specific dimension is to be routed, i.e., 3/4″ wide dado, a re-sharpened bit could give less than that, making additional milling necessary to get a good fit into that dado. However, if the bit is strictly a decorative style, resharpening the bit is the way to go.
One of the items to be sharpened today is this freud 99-569 raised panel router bit. I have found that Freud’s carbide micrograin technology accepts a good edge with diamond honing at 600 grit.
If you are interested in making raised panel doors, freud offers “A Shop Guide to Making RAISED PANEL DOORS on the Router Table.”
Published: January 1, 2019