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Sharpness Testing

How Do I Know If My Knife or Tool is Sharp?
To understand sharpness you must first understand the definition of an edge. An edge is the line of intersection of two surfaces. A highly sharpened edge is one where the two surfaces are highly polished to form a very fine edge. Sharpening is the...
Results Chart for Edge-On-Up Sharpness Testing
What do the numbers on the Edge-On-Up Tester mean? The Edge-On-Up testers are a great way, in fact the only way, to get a quantifiable result when testing the sharpness of an edge. They work by measuring the grams of force required to cut a standa...
What I'm Sharpening Today - Wood Chisel
April 15, 2020 Rust Happens Today I discovered that one of my wood chisels had developed a bit of rust. I'm not proud of that, I like to take care of my tools, but it happens sometimes. Rust is not good for edges so it is best t...
What I'm Not Sharpening Today - Kalthoff Carving Axe
November 24, 2020 I was introduced to the Kalthoff Small Carving Axe by professional woodworker,Tom Bartlett. Tom uses his axe to skillfully turn a piece of green wood into spoon blank. I've been using a small axe that wasn't des...
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