Sharpener Dual-Stage Sharpening: Stage-1 (slot-1) features 100% diamond coarse abrasives, sharpening straight edge bevels to a precise 20-degree angle—ideal for chef and Santoku . (Do not use to slot-1 to sharpen a serrated .) Fine Honing & Burr Removal: Stage-2 (slot-2) uses ceramic fine honing to polish and remove burrs from already sharpened , including straight edge and serrated . Versatile Compatibility: Perfect for a wide range of , including chef , Santoku and serrated , ensuring all your kitchen tools stay razor-sharp. Professional Sharpening Made Easy: This 2-stage sharpener offers effortless precision, faster sharpening, user-friendly operation, a comprehensive dual-stage system, and consistent, reliable results, surpassing the capabilities of traditional manual sharpeners. The built-in sharpening guide allows you to achieve professional-results effortlessly, making it simple for anyone to sharpen like a . Durable & Reliable Design: Constructed with high-quality materials, this sharpener is designed for long-lasting performance, keeping your sharp and efficient for years to come.