A handy tool to have if you want to keep your plexiblades in perfect condition. The Scraper-Sharpener sharpens 3, 4, 5 and 6 mm (1/8”, 3/16”, 5/32” and 1/4”) blades quickly and efficiently. All you need to do is to place the sharpener at an angle on the blade and pull it along. With ceramic disc.