During the sharpening process, we discovered a small crack/hairline fracture near the edge of this slicing cleaver / Nakiri-style knife. To avoid a more serious structural failure in the future that could permanently damage the blade, we recommended completely removing the affected area.

We began by identifying and marking the cracked section before carefully grinding the edge back until the fracture was fully eliminated. Once the damaged portion was removed, we traced a new blade outline accounting for the few millimeters that needed to be taken off the remaining profile to maintain proper blade balance and shape. The excess material was then reduced using a stone grinding wheel.

After the major stock removal was completed, we moved to our 4×36” belt grinder equipped with a 120 grit 3M ceramic belt to refine the blade profile, reestablish the bevel, and restore sharpness. To further smooth the surface and remove belt grinder marks, we finished the blade on a Chosera 1K sharpening stone followed by polishing on a buffing wheel with compound. The final cutting test confirmed that the crack had been successfully removed and the knife was restored to safe working condition.

Jende Industries is an international company specializing in sharpening services and premium sharpening equipment. We are the creators of Jende Reed Knives, Jende Nanocloth Strops, Jende Diamond Emulsions, and Jende Leather Knife Rolls. We also provide precision-cut sharpening stones compatible with guided sharpening systems including the Jende JIGS for Knives, Hapstone, Edge Pro, TSProf, KME, and Wicked Edge systems.

Whether you are a musician, chef, outdoorsman, collector, or sharpening enthusiast, Jende Industries offers professional tools and solutions designed for every level of sharpening experience. Visit the official Jende Industries YouTube channel to explore more demonstrations, product showcases, and sharpening services.