Precision System: 5-step sharpening concept, including coarse tungsten grit (200#), medium diamond grit (400#), and fine ceramic polishing (1200#). Special scissor slot (3mm wide) and adapter for serrated blades. Precisely adjust the angle by turning the knob from 15 to 30. Innovative Material: High-quality tungsten steel (Mohs hardness 9) with diamond coating for long-lasting grinding performance. Versatile Sharpening System: The sharpener features a tungsten steel slot for coarse sharpening and a diamond resin slot for fine sharpening and honing. This makes it an excellent choice for sharpening all kinds of knives, professional knives, kitchen knives, chef's knives, hunting knives, paring knives, serrated knives, pocket knives, new and used knives, and even scissors. Sturdy handles ensure safety: Ergonomic handles provide a secure grip when sharpening knives and scissors. Keep your hands away from the sharpening area while the sharp blade glides over the sharpener. High-density plastic frame with non-slip rubber set to maximize your safety and the stability of the tool during sharpening. Professionally designed: This knife sharpener has an EU-patented design and is designed for German families. It is compact, lightweight, and portable, allowing you to enjoy clean, shiny blades while traveling, camping, or in the kitchen. It also makes a great gift for anyone who works in the kitchen.