With this extrait You can start grinding stone right away and sharpen your razor. It is of the highest quality (Made in Germany), consists of Noble and is both sides grained differently. This means you actually get Two different grinding stones. You can find the grain sizes from the following table:
| FEEP | Jis | |
| Rough grindstone (top) | 500 | 1200 |
| Rough grindstone (underside) | 1200 | 4000 |
The Grain sizes From grindstones are in Germany usually as FEPA-Value (Fédération Européenne des Fabricants de Produits Abrasifs) given. However, the information in Jis (Japanese industrial standard).
Extra wide & made in Germany
Normally, the width of sharpening stones ranges between 50mm and 60mm. Our stones are 70mm wide. This means even a longer straight razor blade lies completely on it.
The stones are made in Germany for a reason. After all, it’s about the highest possible sharpness: that of a straight razor!


Like glued on
With an anti-slip mat made of extra stretchable silicone. This base ensures that the stone virtually bonds with the surface. Move it? No chance!
Two in one
Actually, it’s two sharpening stones in one. Because the two sides have different grits. (You can best find out which ones from the description above). You have about 1.25 cm of pure corundum per grit available.


Store in style
By default, we deliver the stones in an HDF storage box. But if you’re looking for something special, the fine wood box is just right. Available in oak, padouk, wenge, and amaranth.
Also available as a video
We show you how to sharpen a straight razor on the stone in a video from our Straight Razor Academy. Sign up now for free.
To the Straight Razor Academy
An "A.P. Donovan Manufactory" product
Dieses Produkt wurde zu 100% von Manufakturen in Deutschland hergestellt. Auch die Rohstoffe stammen (soweit möglich) aus Deutschland.
More about "A.P. Donovan Manufactory"