Why is VULKANUS a faster sharpening method when compared to sharpening steel or a whet stone?
The patented metal inserts of the sharpening rods are made of special carbide with a very high hardness (approx. 93 HRC). HRC values are used to measure the hardness of materials on the Rockwell scale of hardness. Because this carbide is harder than the blades of most kitchen knives (which have a HRC range in the 50s), VULKANUS sharpens quickly and gives your knife a smooth, even edge. The carbide is also harder than sharpening steel, which has a HRC range in the 60s. When you compare VULKANUS to sharpening steel or whet stones, VULKANUS is much easier to use and it yields consistent, accurate results. Sharpening steel and whet stones require a lot of time and skill and it’s very difficult to sharpen dull knives using these methods. VULKANUS makes it easy and provides the sharpest edge in the shortest time.
