Bone cutting knife repair
The bone cutting knife I delivered the other day. It was thrown into a busy work site and fell due to an unexpected accident…
I received some photos from a customer. The first thing I always worry about in these situations is whether they were injured…
Me: “Are you okay?!”
Customer: “I instinctively tried to catch it… and ended up with a small cut.”
The bone cutting knife are heavy, and when they fall, the speed and force can lead to a serious injury. If something like this happens, it’s always better to just let it go—safety first!
After getting the knife back and inspecting it in person, I found damage far deeper than what was visible in the photos (＞＜). In this case, there were two options for the repair:
Trim the tip of the 300mm knife down to 270mm to preserve the blade width (a restoration-focused approach).
Keep the original length but narrow the blade width by grinding out the damaged part, shifting the edge line closer to the Shinogi.
Of course, the length is important…! So we decided to restore the knife while preserving as much blade width as possible.
It feels like I’ve been using and sharpening this blade seriously for about two years—what a perfect edge!
Building on the lessons learned from the last Honbaduke, I’ve fine-tuned the final edge this time around.
- 2016-07-26
