The Gefu Colt Professional Manual Knife Sharpener delivers a three‑stage process: a coarse ceramic wheel for quick dullness removal, a medium steel plate for honing, and a fine diamond‑tipped plate for polishing. Its ergonomic handle and adjustable guide allow precise angle control on straight or serrated blades, making it ideal for chefs and enthusiasts who need reliable edge restoration in a compact handheld tool.