Professional Rolling Knife Sharpeners Kit keeps blades razor sharp with a durable diamond disc. Ideal for both professional chefs and home cooks, this sharpener provides two sharpening angles (15 degrees and 20 degrees) for precise, repeatable results and safe, effortless use. Two diamond discs for different grinding tasks. The kit includes a #400 diamond disc for initial sharpening and a #1000 disc for fine polishing. Industrial grade diamond delivers strong abrasive action: remove the edge with the #400 coarse grinding, then polish with the #1000 to achieve a sharp edge. Natural premium beech wood housing and strong magnets. The comfortable handle and upgraded triple magnetic attraction hold knives motionless during sharpening, delivering greater stability and precision compared with typical roller sharpeners. 15 degrees and 20 degrees angle sharpening. Easily sharpen traditional and specialty blades. Select the angle, secure the blade with the magnetic holder, and roll the grinding disc back and forth until sharp. The 15 degrees setting provides finer sharpness, while the 20 degrees setting suits most household knives. Wide compatibility for various knives. This sharpener is suitable for chef knives, paring knives, utility knives, carving knives, santoku knives, butcher knives, and more. Use scenarios. Refresh dull kitchen knives before cooking; maintain and sharpen professional chef knives in a restaurant setting; revive hunting or outdoor knives with regular touchups.