How to Sharpen a Router Plane Blade
I just bought an old router plane and want to put it to work, but I can’t figure out a good way to sharpen the blade. Any tips?
David Kroenke, Whidbey Island, WA
Because there us a 90° turn in router-plane blades, they can be a pain to sharpen. The trick is to take the sharpening stone to the blade. In other words, to grind and hone the bevel, hold the blade in one hand and the stone in the other. Stroke the stone over the bevel. Be careful to keep the bevel square to the edge of the blade; otherwise, it will cut deeper on one side than the other and you won’t get flat-bottom grooves from the plane.
As for the flat side of the blade, deal with it just like the flat side of a standard plane blade, by keeping it flat on the stone and taking care not to round over the bevel.
Photos: Kelly J. Dunton