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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...
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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...
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