If your blade has genuinely gone dull, you need something that removes metal and resets the bevel. The SHARPI Diamond Musak Steel is a 25cm diamond-coated rod it hones AND sharpens, which means you can use it as a daily maintenance tool and a real sharpener.

The 600 grit diamond coating on this SHARPI sharpener is the difference between realigning an edge and actually resharpening it. Where a ceramic rod just straightens the micro-edge, the diamond surface cuts into the steel and resets the bevel.

That means you can use it to maintain an already-sharp blade or bring back a blade that's started to go dull.

At 25cm, it's a full-size rod that feels natural in use. Long enough to work the full length of most blades in a single stroke.

The handle is built for a secure, comfortable grip important when you're using a sharpener with real cutting power.

Materials & care

• Wash under running water with a soft sponge do not use the dishwasher.
• Dry thoroughly after washing. Do not press too hard the diamond works effectively with light pressure.

How to use

• Place the steel upright on a stable surface.
  Choose a guide: 15° (sharper, precise) or 20° (universal, durable).
  Drag the knife along the rod from base to tip, applying light pressure, 3–6 strokes per side.
  Repeat on the other side. Finish with 1–2 gentle strokes per side.
  Rinse and dry the rod after use.