In addition to having your knife performance tuned before it ships, you will received a coupon for complimentary re-sharpening of your knife (a $12-$50 value). That is the District Cutlery difference.
The Tsunehisa line of knives are hand-made in Tosa, Japan, by a small team of skilled craftsmen.
The blades are 3-layer stainless-clad Aogami Super (Blue Super) high-carbon steel with kurouchi (pronounced kooo-ro-ooo-chi, translates to "black hammer") finish. These blades are thicker than average and have a fairly pronounced wedge grind.
The handles are oval shaped rosewood with pakka wood ferrule. Wa-handle knives have a more neutral balance than Half-tang knives.
Japanese chef knives are brittle and are designed for cutting soft tissue foods. High Carbon steel chef knives can rust if not kept dry.