The Mercer Culinary M10200-SplitCase is a manual knife sharpener designed for precision and ease of use. Featuring Double Diamondâ„¢ technology, it utilizes 100% diamond abrasives to effectively sharpen all types of knives. The sharpener offers two stages: one for sharpening and another for honing, ensuring your blades maintain optimal sharpness. Its textured handle provides a secure grip, enhancing safety and control during use. Proudly assembled in the USA, this sharpener combines quality craftsmanship with practical functionality for all your kitchen needs.