Tungsten-Diamond-Ceramic Knife Sharpener

A manually operated, three-stage knife sharpener featuring: Stage 1 — coarse grinding with a diamond sharpening rod; Stage 2 — edge repair and realignment using a solid tungsten steel disc; Stage 3 — fine honing and polishing with a high-purity ceramic rod. The external casing is made from heat-resistant, impact-resistant ABS plastic — chosen for durability and safe handling. Each sharpening channel is lined with its designated functional material: diamond-coated rod (Stage 1), hardened tungsten steel (Stage 2), and precision ceramic (Stage 3). The base incorporates a rustproof metal plate bonded to a wide, non-slip rubber mat — ensuring stable positioning during use. The handle is ergonomically shaped for comfort and control, supporting both right- and left-handed users equally. Designed for compatibility with common household knives: slicing, boning, paring, fruit, and utility blades — fulfilling daily sharpening requirements across diverse cooking tasks. Operation is simple and safe: place blade in appropriate slot and draw gently 3–5 times — achieving visible improvement without technical knowledge or external power source.