PUMA Belgian Blue Whetstone / Water Sharpening Stone
Item No.: 900823
EAN: 4046581008239
- In stock
Product description
2 sides / Combination stone
Grit of the grey side: 1,200
Grit of the violet side: 6,000
Dimensions: 150 x 50 x 20 mm
Weight: 412 g
How does the Belgian whetstone work?
When sharpening tool steel, the burr created during grinding is removed and the cutting edge is polished. During this process, the following happens to the Belgian whetstone moistened with water:
When the blade of the tool rubs over the uniformly fine-grained surface of the stone, the softer components of the sedimentary rock such as ash, clay, and mica are first detached by the abrasion, and the embedded garnets protrude slightly. Then they too detach from the parent rock (this is called grain breakout) and, with the water, form a thin paste, the grinding paste.
During the uniform grinding motion, the rounded garnets penetrate slightly into the steel and remove fine shavings from the metal. However, the hardness of the garnet causes very sharp abrasion, but due to the round shape of the spheres, no cracks are created, but rather a fine polish. This combination of speed and fineness is unique worldwide. It allows for a cutting sharpness to be achieved with which, for example, wood fibers can be cleanly cut across the grain.
Technical Data & Materials
Shipping & Delivery
Shipping costs
- Germany: €4.99 – free shipping on orders over €49
- Europe: €13.99
- Switzerland: €15
- Worldwide: €29.99
- Island surcharge (abroad): €15
Delivery times
- Germany: 3–5 working days
- International: 5–8 working days
- No deliveries on Sundays and public holidays.
- For orders with different delivery times, we ship everything together – the longest delivery time applies.
Product Safety Information (GPSR)
Manufacturer:
PUMA GmbH IP Solingen
Represented by: Managing Director H. Hiepass-Aryus
An den Eichen 20–22, 42699 Solingen, Germany
Email: info@pumaknives.de
Product: PUMA Belgian Blue Whetstone / Water Sharpening Stone
Intended Use:
For hunting and outdoor use, as well as for general cutting work.
Safety instructions:
Sharp blade – risk of cuts and punctures.
Not a toy.
Use only as intended and responsibly.
Keep out of reach of children.
Use a suitable sheath for transport and storage.
Legal notice:
The distribution and use of the product are subject to the applicable legal provisions of the country.
Conformity:
The product complies with applicable EU product safety requirements.

Technical details
1769
Our founding
Johann Lauterjung registers his trademark in the Solingen knifemakers' register.
1876
Production expansion
The founder's great-great-grandson is also manufacturing pocket knives, stilettos, sabers and hunting knives for the first time.
1900
Entry in the commercial register
On May 26th, the name “PUMA-Werk, Lauterjung und Sohn” will be entered into the Solingen commercial register.
1953
Puma classics are created
Production at the PUMA factory is being switched to functional hunting, fishing, leisure and sports knives.
1995
Modernization of production
New manufacturing methods, such as CNC machines and laser technology, are being promoted.
1998
Hiepass-Aryus family
Businessman H. Hiepass-Aryus takes over management and moves into the modern headquarters in the Solingen district of "Aufderhöhe".
2024
Over a quarter of a millennium PUMA
The “Solingen Knife Manufactory” has existed for 255 years – and the story continues.







