Professional knife sharpening system with twostage grinding for reliable, repeatable results Dualstage grinding system: coarse grinding to recondition blunt blades, followed by fine grinding to produce a sharp edge. Designed to work with all kinds of kitchen knives. efficiency diamond grinding wheel: industrialgrade diamond wheel sharpens blades quickly, typically in about 10 seconds, delivering improved speed over traditional whetstones and helping maintain blade edge. Automatic safety operation: intelligent fixedangle design requires no manual angle adjustments. The nonslip base and safety hand guard reduce risk of scratches and make it easy for seniors to use. Wide compatibility: suitable for chef knives, fruit knives, and scissors, and it includes a special slot for serrated knives to meet 99% of household sharpening needs. Use scenarios Scenario 1: While preparing dinner, quickly restore a blunt chef knife to a precise edge for smooth, even slicing. Scenario 2: Sharpen a serrated bread knife using the serrated slot to achieve clean, effortless slicing of crusty loaves. Scenario 3: Between tasks, touch up fruit knives and kitchen scissors to maintain sharpness without clutter or manual adjustments. Key attributes Function: twostage grind with automatic angle control for consistent results Compatibility: works with chef knives, fruit knives, scissors, and serrated knives (via special slot) Material: industrialgrade diamond grinding wheel Performance: fast sharpening (about 10 seconds) with improved efficiency over traditional whetstones Safety: fixedangle design, nonslip base, and safety hand guard for easy, risk use