AstraSharp Rolling Knife Sharpener with Diamond Discs and Magnetic Base
The AstraSharp sharpener trades the old back-and-forth stone technique for a simple rolling motion — run your blade along the diamond-coated discs and the angle takes care of itself. A magnetic knife holder locks your blade at a true 15° or 20° edge every pass, while the weighted base grips the counter so the whole unit stays put while you work.
Two diamond discs and a magnetic angle guide take the guesswork out of getting a real edge back on a dull blade.
Features
- Dual diamond-coated discs — the coarse #400 disc knocks out nicks and rough spots, then the fine #1000 disc polishes the edge to a clean finish.
- Magnetic angle control — the built-in magnetic holder keeps your blade locked at a consistent 15° or 20° angle, so every stroke sharpens the same line.
- Rolling sharpening action — glide the knife along the rollers instead of dragging it across a stone, for a smoother, more controlled pass.
- Anti-slip silicone feet — the base grips your countertop, so it stays steady while you sharpen instead of sliding around.
Choosing your angle
Use the 15° setting for a finer, more delicate edge on kitchen knives you use for precision work, and the 20° setting for a sturdier edge that holds up to tougher, everyday cutting.
Available colors
| Color |
|---|
| Black |
| Brown |
Specifications
| Materials | Wood, stainless steel, diamond-coated grinding discs |
| Sharpening angles | 15° and 20° |
| Disc grits | #400 coarse, #1000 fine |
| Base | Anti-slip silicone feet |
| Sharpener size | 8.5 x 5 cm (3.34 x 1.96 in) |
| Base size | 10.5 x 6 x 2.5 cm (4.13 x 2.36 x 0.98 in) |
| Color options | Black, Brown |
| Included | Rolling knife sharpener, magnetic angle base, user manual |
Frequently asked questions
What's the difference between the two discs?
The #400 grit disc is coarse and handles the initial sharpening, removing nicks and dullness, while the #1000 grit disc is fine and polishes the edge to a smooth finish.
How do I pick between the 15° and 20° angle?
15° suits knives you want a finer, sharper edge on, while 20° gives you a stronger edge that holds up better to daily kitchen use.
Does the base stay in place while I sharpen?
Yes — the silicone feet on the base keep it anchored to your countertop, so you can focus on the rolling motion instead of holding it steady.
Does it come with a knife?
No — the set includes the rolling sharpener, the magnetic angle base, and a user manual; bring your own blades to sharpen.
Every order ships free with no minimum, and you have 30 days to return it. Real human support is here at Support@fioriscas.com.