Double face Aluminum Oxide Whetstone for Japanese Knife used on Your professional knife sharpening kit is made of premium white corundum which is composed of double-sided(#1000/#6000) sharpening stone, It is suitable for sharpening most family knives, professional knives, outdoor knives and hunting knives. Whetstone knife sharpener stone with knife whetstone angle guide for beginners to easily fix the knife at the correct sharpening angle; easy to get started; honing guides for chisels and plane; makes everything super easy. In addition: Grinding only needs water, easy to clean, and ensures food safety and deliciousness. This whetstone sharpening kit is for home kitchen knife sets, pro chef's knives, scissors, chisel and axes or other tools that require sharp; use only once for lasting sharpness.