Strictly aged sharpening angle is an important element of any carpenter’s tool. However, to achieve this on the bar manually is not so easy, especially for pieces of iron of a plane. A good assistant will be… the plane. Pull out the blade tool on the entire length but so that the cut was horizontal, and firmly fix with the bolt or wedge in the pad plane. Put it under the cutter abrasive, and under the heel of the tool is the same thickness of a wooden block, and you can start sharpening.
MARTYNOV, Novocheboksarsk