How To Sharpen Planer Blades With Sandpaper. Making a planer blade sharpening jig homemade machines & jigs. The sandpaper i used were 320 and 400 grit. It happens that the sandpaper produces the sharpest blades of all other.
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Sharpening with sandpaper is quite similar to sharpening with a stone. (for this procedure, we made our own sharpening stone by gluing four different grits of sandpaper—220, 400, 800, and 2000—to a piece of mdf using spray adhesive.) A sheet of sandpaper and a flat, hard surface are all you need to sharpen any knife. Joe, flat grinding is considered superior for wood planer/jointer blades. Flattening the backs of plane irons and chisels. Chisels get different bevel angles for different tasks: Sharpening a plane blade 2020. This works, but if the paper is not tight, the blade will soon tear it.