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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...
Wow! Your are fast and your communication is excellent. The item arrived today (IM200) and it is a great tool -- my knives are sharp again! Thank you so much for a wonderful item and fine service.
Penny M, St Paul, MN