Gritomatic Sharpening Bench Stones are used for free hand sharpening knives. The stones are made of silicon carbide and are designed for the hardest steels (up to 65 HRC).
It is advisable to use silicon carbide stones for sharpening knives made of hard stainless steel or carbon steel, such as: ZDP-189, ZDP-247, S30V, S35VN, S90V, S110V, 154CM, D2, YXR7, Cowry, S290, S390, K294, K390, M390, Elmax, 154CPM, ATS-34, 440C, AUS-8, AUS-10, A2, BG-42.. Using silicon carbide stones to sharpen knives made of soft steel is not recommended, as it will cause the stones to wear an at increased rate.
Gritomatic Silicon Carbide Stones are preliminary lapped and do not require lapping after purchase.
Gritomatic Silicon Carbide Stones are recommended to be used with water as lubricant. Soak the stone for 5-10 minutes and splash water on the stone's surface to prevent drying.