How it works

Set, roll, slice

The magnetic block holds the blade at the right angle. You roll the disc along the edge. That is the whole method.

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The angle

The block holds the angle

A magnet holds the blade at 15° or 20°, so every pass meets the edge the same way. No guesswork, and nothing to practise.

Step by step

Three steps, a few minutes

Allow a few minutes per knife the first time. After that, a quick top-up keeps the edge.

Set the blade
01

Set the blade

Rest the blade against the magnetic block, on the 15° or the 20° side.

Roll
02

Roll

Roll the disc along the edge, then turn the knife and do the other side.

Slice
03

Slice

Your knife cuts cleanly again.

The technique

Four things worth knowing

15°20°
01

Pick the angle

20° suits most everyday kitchen knives. 15° gives a finer edge on thin slicing knives. Not sure? Start with 20°.

HeelTip
02

Roll the full length

Roll from heel to tip and back, with light pressure. The disc does the work, not your arm. Then turn the knife and do the other side.

4001000 RestoresRefines
03

Coarse, then fine

Start on the 400 grit disc to bring a blunt edge back. Finish on the 1000 grit disc to refine it. Always in that order.

04

Test the edge

A sharp knife slices a sheet of paper cleanly and goes through tomato skin with no pressure. If it snags, give it a few more passes.

Before and after

The same tomato, a different edge

A blunt knife crushes. A sharp one slices. Drag the handle to compare.

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Sharp knife
Blunt knife
Blunt knife Sharp knife
Two grits, two jobs

The discs

Two grits, two jobs

The lower the number, the coarser the disc. Start with 400 grit to bring a blunt edge back, then move to 1000 grit to smooth and refine it. Always in that order.

Straight answers

What it does. And what it doesn't.

It does

  • Gives a very good edge on plain-edged kitchen knives
  • Holds the angle at 15° or 20° on every pass
  • Works on double-bevel kitchen knives

It doesn't

  • Sharpen serrated knives, including bread knives
  • Hold ceramic knives: the magnet cannot grip them
  • Suit very narrow blades, single-bevel knives or scissors

Questions

Good to know

Another question? Write to us.

I've never sharpened a knife. Is it easy?

Yes. The magnetic block holds the blade at the right angle, so all you do is roll. A free sharpening guide arrives by email with your order.

Which knives can I sharpen?

Plain-edged kitchen knives, such as chef's knives and carving knives. It is not for serrated knives, such as bread knives, or for ceramic blades.

15° or 20°: which angle should I use?

Use 20° for most everyday kitchen knives. Use 15° for a finer edge on thin slicing knives. Not sure? Start with 20°.

How long does it take?

Allow a few minutes per knife the first time, longer if the blade is very blunt. After that, a quick top-up keeps the edge.

Do the discs wear out?

In time, yes, like any sharpening surface. Spare 400 and 1000 grit discs are sold separately, so you replace a disc and keep the sharpener.

What about delivery and returns?

Delivery is free in the UK and takes 7 to 10 working days. If you change your mind, you have 30 days to send it back unused, and it comes with a 2-year guarantee.

The range

Free UK delivery
30-day returns
2-year guarantee
Free sharpening guide