$54.00
Fifteen degrees, every time. Hold the knife against the block, roll the cylinder, and the angle takes care of itself.
The angle is built in. Magnets hold your blade at the correct angle. You just roll. No guesswork, no jigs, no stones to soak.
Dull to sharp in ninety seconds. Diamond side to raise the edge, ceramic side to polish it. Works on every straight steel blade in your kitchen.