4-stage sharpening process with universal compatibility - Integrated 4-step system enables a smooth transition from base sharpening to precision refinement for optimal cutting performance across a wide range of blades. Easy to use - Non-slip grip geometry with an ergonomic design ensures fatigue-free sharpening and allows one-handed operation. - Especially suitable for older users and beginners, promoting confidence and ease of use. Efficient edge renewal - Precisely restores the original sharpness using a fine-grain surface for mirror-smooth edges. - Coarse-grain stage corrects edge geometry for a renewed bevel. - Double-sided grinding stones enhance cutting performance over time and support versatile use for blades from kitchen knives to craft tools. Everyday-ready solution - Reliable sharpening results for ceramic, carbon, and stainless steel knives. - Ideal for efficient cutting in both household and gastronomy settings. Use scenarios - Daily kitchen prep: quickly bring dull chef’s, paring, and utility knives back to sharp for efficient vegetable, meat, and fish prep. - Professional environment: maintain a mixed range of knives in a restaurant or catering operation with consistent edge quality. - Hobby or craft workshop: sharpen hobby knives, craft blades, and other precision blades for detailed projects.