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Korin Knife Sharpening Service

Korin is the first company in the world that was given authorization and certification to re-sharpen and repair knives from Masamoto Shohonten, Misono, Knife Systems (Suisin) and Nenohi.

Our service request procedure and shipping address have changed.

Please fill out the sharpening online form linked in the red "Knife Sharpening Form" button below to get started on processing your knife sharpening/repair.

Rust Removal

Korin are able to clean rusted blades or clean discoloration knives. However, there will be some isolated cases where cleaning is not possible. Watch the following video where Vincent explains some examples of such cases:

How to send your knives in for sharpening/repairing

Wrap your knives up very carefully using several sheets of newspaper. Please DO NOT include blade covers, boxes, or sayas. Please pack your knives in a shipping box with extra cushioning (bubble wrap and/or newspaper) and please DO NOT mail in in an padded envelope to avoid accidents during shipping transit.