OSTRO™ Rolling Knife Sharpener
OSTRO™ Rolling Knife Sharpener
Easy to use design
Professional quality at home
Versatile for all types of straight edge blades
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30-day risk
free trial
Express 48hr
dispatch
Tired of dull knives slowing you down in the kitchen?
Upgrade your kitchen routine with the OSTRO™ Rolling Knife Sharpener—an innovative, beginner-friendly tool designed to give your knives a razor-sharp edge with minimal effort. Crafted with a smooth rolling design and paired with an angle-guiding base, this sharpener ensures every stroke is precise, consistent, and tailored to the perfect sharpening angle.
Perfect for home cooks and enthusiasts alike, the OSTRO™ Rolling Knife Sharpener restores dull blades quickly—making meal prep smoother, safer, and more enjoyable. A beautifully crafted, easy-to-use tool that brings pro-level sharpening right to your countertop.
You'll love our rolling knife sharpener because...
It's easy to use
Simple out of the box experience, anyone can use
Improves Lifetime
Improve the performance and lifetime of your knives
30-Day Risk Free Trial
Sharpest knives or your money back
Have questions?
How do I use it?
The magnetic block has 5 angles (12, 15, 17, 19 and 22 degrees) for all types of blades. The process is very simple, using the magnetic block you attach your knife to the desired angle.
Using the diamond disk, run the roller back and forth along the edge of your blade and repeat for the other side until sharp. You then repeat the same process with the honing disk.
Following this simple process will result in a quality culinary experience.
Using the honing disk is good practice to improve longevity and keeping a sharp edge, but will not sharpen your blade if it is already dull. To keep your blades at the highest quality possible to as long as possible we recommend sharpening every 2-3 months.
How often should I sharpen my knives?
To keep your blades at the highest quality possible to as long as possible we recommend sharpening every 2-3 months.
Using the honing disk is good practice to improve longevity and keeping a sharp edge, but will not sharpen your blade if it is already dull.
Why will this improve my culinary experience?
Not only will it improve your culinary experience, it will result in a safer environment.
A sharp knife cuts with minimal effort, allowing for more control, while a dull knife can slip unpredictably, especially on hard vegetables. This lack of control, coupled with hand fatigue from applying more pressure, makes accidents far more likely.
Will it OSTRO work for my knives?
Yes! The our Rolling Sharpener is designed to sharpen most kitchen and outdoor knives, including stainless steel, carbon steel, and even high-end Japanese blades. However, it’s not suitable for serrated knives or scissors. If you value versatility, ease of use, and sharp results, our sharpener is perfect for you.
Compatible Brands:
German Knives:
• Wüsthof, Zwilling J.A. Henckels, Messermeister
Japanese Knives
• Shun, Global, Miyabi, Tojiro, MAC
American Knives
• Cutco, Lamson, Dexter Russell, Mercer Culinary
Outdoor Knives
• Buck, Spyderco, Benchmade, KA-BAR
Specialty Knives
• Dalstrong, Victorinox, Yoshihiro
This list covers many popular brands, but rest assured, Ostro works with nearly any quality straight-edge knife.
How does the 30-day guarantee work?
We offer a 30-day risk free trial. Not satisfied? Simply return the knife sharpener for a full refund (and we'll cover the return shipping). We will do WHATEVER it takes to make sure you are 100% satisfied with your purchase.