The Hatsukokoro by Nakagawa Ginsan Single Bevel Mirror Polish line consists of Yanagiba and Deba knives forged by Satoshi Nakagawa using Ginsan steel with a flat zone (Hira) finished in a refined mirror polish, designed primarily for professional chefs and serious enthusiasts who prioritize aesthetics alongside function.
These knives are built for those willing to manage a high-budget tool where the mirror finish offers a sharp, uniform look but requires more care to maintain than a standard Kasumi finish. While the entire blade features consistent grinding marks, a rounded choil and spine, and the same construction as the Kasumi line, the mirror polish itself can be difficult to keep pristine, making it a trade-off between visual appeal and ease of maintenance.