This Japanese Deba Knife Was Chipped & Dull — Full Repair on a Water-Cooled Belt Grinder

Описание: This Japanese Deba knife came in heavily chipped and completely dull — the kind of edge that’s more dangerous than useful. Deep chips, fatigued steel, and poor edge geometry meant this wasn’t a quick touch-up. It needed real correction.

In this video, I take this traditional Deba bocho through a full sharpening and repair process, removing chips, resetting the edge, and restoring proper cutting performance while respecting the knife’s original grind and purpose. Heavy single-bevel knives like a Deba demand patience and precision — especially when repairing damage.

For the heavy repair work, I used a water-cooled belt grinder, allowing controlled material removal, reduced heat buildup, and consistent edge geometry during chip removal. Once the damage was corrected, the edge was refined and finished to bring the blade back to clean, functional sharpness.

In this video you’ll see:

Chip removal on a Japanese Deba knife

Repairing damaged edge geometry

Knife sharpening using a water-cooled belt grinder

Professional sharpening techniques

Proper care for traditional Japanese knives

This is real knife work, not a quick polish for the camera. If you’re into Japanese knives, knife sharpening, blade repair, or traditional craftsmanship, this one’s for you.

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