Rolling Knife Sharpener – Diamond Discs, Magnetic 15° & 20° Angle Block
Rolling Knife Sharpener – Diamond Discs, Magnetic 15° & 20° Angle Block
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Details
Diamond discs · Magnetic angle block · Solid hardwood
Razor-Sharp Knives at Home, Without the Whetstone Guesswork
A dull knife squashes tomatoes, saws through onions and slips when you least expect it. This rolling knife sharpener makes a sharp edge simple: the magnetic block holds your blade at exactly 15 or 20 degrees, and you roll the diamond disc along the edge. No practice, no guessing the angle, no mess.
Tired of dull knives?
Why most sharpening goes wrong
The secret
The right angle, every time
The double-sided magnetic block holds the knife firmly at a fixed angle: one side gives 20 degrees, the other 15 degrees. Because the angle never changes while you sharpen, you get an even, precise edge without any skill.
As a rule, Western kitchen knives use 20 degrees and Japanese knives 15 degrees. If you are not sure, a quick online search for your knife will tell you.
How it is built
A diamond disc on smooth rollers
The rolling body has a diamond grinding disc on one end and a fine honing disc on the other. Professional ball bearings inside let it roll smoothly along the work surface, while the solid hardwood body gives it a steady, weighty feel in the hand.
Diamond is the hardest material known, so with normal use the discs should not need replacing.
- Real diamond abrasive for fast, precise sharpening
- 400 grit disc to set the edge
- 1000 grit disc to hone and finish
- Magnetic holder with 15 and 20 degree sides
- Solid hardwood body with ball-bearing rollers
How to use
Sharp in five steps
1. Find your angle
Most Western knives are sharpened at 20 degrees and Japanese knives at 15 degrees.
2. Secure the blade
Attach the knife to the magnetic block on the side with the right angle, so it is held steady while you sharpen.
3. Sharpen
Roll the coarser 400 grit disc back and forth along the edge on one side, then flip the blade and do the same on the other side.
4. Hone the edge
Switch to the fine 1000 grit disc and finish, starting on the side you began with.
5. Done
Your knife is sharper, and safer to use.
Before and after
See the edge up close
Under magnification a dull edge looks rough and uneven. The fine diamond abrasive refines the edge into a clean, straight line, so the knife cuts precisely again and keeps that edge for longer.
Why people choose it
Rolling diamond sharpener vs the usual options
| This sharpener | Whetstone or pull-through sharpener | |
|---|---|---|
| Fixed 15 and 20 degree angles, no guesswork | ✓ | ✗ |
| Real diamond abrasive | ✓ | some |
| Magnetic holder keeps the blade steady | ✓ | ✗ |
| Solid hardwood body | ✓ | ✗ |
| Ball-bearing rollers | ✓ | ✗ |
| No water or soaking needed | ✓ | some |
Built to last
Made with real diamonds
The grinding disc is coated with real diamond, and the body is made to last with stainless steel parts and solid hardwood. Clean the discs simply by dabbing off the grinding residue with a damp cloth.
Colours
Three finishes
Unboxing
Ready to use out of the box
Everything comes together in one box: the rolling sharpener with both discs, the double-sided magnetic block and an operating manual. It also makes a great gift for anyone who loves to cook.
Questions people ask
How long does it take to sharpen a knife?
It depends on how dull the blade is and on the steel. The first time, the edge first has to take on the new 15 or 20 degree angle; on average this takes about five minutes. After that, a quick touch-up keeps it sharp.
How do I clean the diamond discs?
Dab the grinding residue off with a damp cloth.
What about knives taller than the sharpener?
For very broad blades, where the cutting edge sits higher than the disc, place the sharpener on a cutting board of suitable thickness so the edge meets the disc.
How do I know which angle to use?
Western knives usually use 20 degrees and Japanese knives 15 degrees. A quick online search for your specific knife will confirm it.
Will the diamond discs wear out?
Diamond is the hardest material known. Used correctly, the discs should not need replacing.
Specifications
- Sharpening discs: diamond, 400 grit and 1000 grit
- Angles: 15 and 20 degrees (double-sided magnetic block)
- Body: solid hardwood (Hardwood finish) with ball-bearing rollers
- Finishes: Hardwood, Stealth (black) or Glacier (white)
What's in the box
- 1 × rolling sharpener
- Sharpening discs: 400 grit and 1000 grit
- 1 × double-sided magnetic holding block (15 and 20 degrees)
- 1 × operating manual