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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...
Dear Mr. Carmona: From the first time I spoke to you by telephone, I have been greatly impressed by your willingness, even your eagerness to take your time from your own personal activities to assist me. I am awed by your extensive knowledge and work in a field that is such a benefit to so many people in so many kind of activities. Your website is a real asset, and a testimony to your desire to be helpful. I wish to thank you again for your kindness as well as your fervor in the way your company deals with interested parties, even those who may purchase nothing, or only small items, as I have done.
Ralph W, Marietta, GA