Sharpening Basics - Work Sharp KEN ONION EDITION KNIFE & TOOL SHARPENER MK.2 User Manual

SHARPENING BASICS

WHAT EDGE ANGLE AND WHY?
Our recommendations (found in the Sharpening Reference Chart, pg 15)
are based on our extensive testing and driven by three primary factors: 1)
Optimizing the edge angle for the intended purpose of the knife. 2) Optimizing
edge retention for the knife's purpose. 3) Speed of sharpening process.
WHY IS A CONVEX EDGE SUPERIOR?
Our blade use and sharpness testing have taught us that a convex edge is a
superior edge. The smooth radius edge type does not have "shoulders" like a
flat grind and creates less friction or resistance when cutting. A convex edge
provides more steel behind the edge to support it, so the edge stays sharper
longer. Lastly, our convex method thins the bevel when you sharpen the blade,
while flat ground blades become thicker and thicker as you re-sharpen.
THE SHARPENING PROCESS
BURR
8 | S H A R P E N I N G B A S I C S
FACTORY EDGE
Most knives are flat ground from the factory and have a smaller
bevel height or surface area.
CONVEX GRIND IN PROCESS
Re-sharpening to a lower angle and a convex grind takes time.
Be patient and ensure you create a burr.
CONTINUE TO NEXT GRIT
Sharpen one side of the knife until a burr is created. Switch to the
other side and create a burr before switching to a finer grit belt.