Grinding and honing a router plane blade can be a challenge. It’s a freehand operation as there’s really no way to jig up the blade for honing.
A hollow grind is a huge aid in freehand honing. Whenever I’m honing a blade freehand, I always grind a hollow bevel. However, grinding a hollow bevel on a router plane blade using a typical bench grinder isn’t possible. The “L” shape of the blade prevents the bevel from contacting the wheel at the proper angle.
Derek Cohen of inthewoodshop.com came up with a solution to this problem. His method for grinding a router plane blade utilizes a sanding drum in the drill press and a simple wooden cradle to hold the blade in the proper orientation. I discovered Derek’s method some time ago and thought it was brilliant, so I decided to demonstrate it in the video below.