3pc Diamond Sharpening Whetstone Coarse Medium Fine Knife Sharpening Stone - AB Tools - TE116

The 180-grit stone is coarse, ideal for quickly removing material and repairing damaged edges. The 260-grit stone is medium, used for refining the edge after coarse sharpening. The 360-grit stone is fine, used for polishing the edge to a razor-sharp finish or for light touch-ups on already sharp blades.

This depends on usage frequency and the quality of the knife steel. For heavily used kitchen knives, sharpening every few weeks or when you notice a decline in sharpness is recommended. Regular touch-ups with the fine grit stone can help maintain sharpness between major sharpening sessions.

Diamond stones typically perform best when used dry or with a light mist of water to flush away swarf (metal particles). Avoid heavy oiling, as it can clog the diamond surface. Water helps keep the surface clean and reduces heat buildup.

Each stone in this set has a sharpening area measuring 75mm x 25mm.

After cleaning and drying them thoroughly, store the stones in a dry place. Keeping them in their original packaging or a dedicated stone holder will protect them from damage and contamination.

While primarily designed for straight edges, the finer grits can be used carefully to touch up a serrated edge. However, dedicated serrated knife sharpeners are usually more effective for this specific task.

Rinse the stone thoroughly under warm running water. Use a soft brush to gently scrub away any embedded metal particles. Ensure the stone is completely dry before storing.

Ensure the stone is placed on a perfectly flat and stable surface. Check that you are maintaining a consistent angle throughout the sharpening stroke. Avoid excessive pressure.

Make sure you are progressing through the grits correctly if the blade was very dull (coarse to fine). Ensure you are using sufficient passes and the correct sharpening angle. For extremely damaged blades, consider professional repair first.