Thread: How does Lapping actually work?

Johnus, there are threads on the internet on sharpening double edge razors on the inside of a glass. And I recall seeing concave glass or porcelain Double edge blade hones. I suspect the goal was to hone both ends of the blade at the same angle and an easy, safe way to hold the blade. The hone does not have to be flat, just at a consistent angle and an even grit cutting height.

I believe the scratches don’t matter because if the surface of the hone or tops of the grit is even, the razor edge will bridge the scratch. If you were to keep the razor exactly in the same track with the scratch it could cause a land/protrusion in the edge, but doing so on a random scratch would be impossible, one of the benefits of the x stroke pattern.

Originally Posted by Euclid440

there are threads on the internet on sharpening double edge razors on the inside of a glass.

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My grandfather extended the life of his razor blades with a drinking glass back in the early 1900's. My father did also.

Jerry