Edge on Up

Put a Number on "Sharp"

Edge On Up testers let you quantify sharpness using the Brubacher Edge Sharpness Scale (BESS) to compare sharpeners, strops, and technique with numerical confidence. Explore clip-based speed or fixture-based precision and make sharpening a measurable, repeatable part of your process.
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Sharpness. Defined.

Edge On Up products give you a precise, measurable way to track sharpness using the BESS scale. Whether you’re refining your edge or comparing blades, they turn sharpening into something you can see, score, and improve.