Diamond knife sharpener | 15°/20° angles

A diamond sharpener with two stated angles

This knife sharpener uses a diamond abrasive and is offered with angles of 15° and 20° depending on the chosen version. A 15° angle may be suitable for certain thinner blade profiles, while 20° is often used for standard kitchen knives. Always check the intended angle for your knife before use.

A tool to be used gradually

The diamond abrasive removes material to restore a blade's edge. Start with a few light passes, without excessive pressure, then gradually check the result. Sharpening too frequently or with too much pressure can unnecessarily alter the knife's profile.

The finish depends on the initial state of the blade, the angle chosen, the pressure, and the technique used. This tool helps with routine maintenance, but it does not repair a cracked, heavily deformed, or structurally defective blade.

Usage and safety advice

Place the tool on a stable and clear surface, or hold it according to the manufacturer's instructions. Keep your fingers away from the abrasive area and pull the blade through in the intended direction, using steady movements. Never test the sharpness with your finger.

Only use the angle compatible with your blade. Serrated knives, ceramic blades, special profiles, and certain Japanese knives may require a different tool. If in doubt, consult the manual or seek advice from a professional sharpener.

Cleaning and storage

After use, remove residue with a dry cloth or according to the manufacturer's instructions. Avoid standing water and abrasive products, then store the sharpener in a dry place, out of reach of children. Clean and dry the knife before storing it.

Do not use if the handle, base, or abrasive surface is damaged. For a heavily damaged blade, favor the intervention of a professional sharpener.

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