PRECISION IS KEY: Our sharpener is angle-guided with a 3-sided abrasive jig-and-clamp that makes manual sharpening faster, easier, and more precise than ever. ADJUSTABLE, REPEATABLE, EASE: The sharpening angle can be easily adjusted from 15- 30 degrees in 1-degree increments to reprofile an old blade or create a beautifully polished edge to your favorite, including serrated knives. TRI-BRASIVE ROD: Quickly index between coarse and fine diamond and fine ceramic stone to customize the sharpen you need. Our sharpener also includes a v-block clamp that secures the knife safely and consistently. 3-YEAR WARRANTY: All Work Sharp sharpeners come with a comprehensive 3-year warranty. Each knife & tool sharpener is meticulously designed and quality-checked at our Oregon facility. We proudly stand behind our products. DESIGNED, ENGINEERED, & CALIBRATED IN OREGON: We design, engineer, and calibrate our sharpening machines all under one roof in Ashland, Oregon & ensure our products are sourced from the highest caliber manufacturers, both in the USA and globally.