Ok, so it was a wood carving knife. The first knife on this page.
But I wasn't prying or picking or abusing it. Pressure was applied straight onto the spine. It seems to have snapped edge to spine. I am carving a ball in cage. See this post for an example of a ball in cage. And I went to use the tip to sever the ends of some wood fibers and it snapped off. At least 1 to 1.5mm and maybe more. And the tip is still stuck in the wood. I may try to get pics later but I am in shock right now. The knife was zero ground with a 180 grit belt on the belt sander and I was careful to control the heat. But it was really thin and I did burn the tip. BUT I GROUND THE BURNT STEEL OFF and restored the original sheepsfoot shape. I had to micro bevel the knife on a strop to stop rolling but I have been using the knife since. It has been over a week of heavy carving since I reground the knife. Works wonders on wood though.
But I wasn't prying or picking or abusing it. Pressure was applied straight onto the spine. It seems to have snapped edge to spine. I am carving a ball in cage. See this post for an example of a ball in cage. And I went to use the tip to sever the ends of some wood fibers and it snapped off. At least 1 to 1.5mm and maybe more. And the tip is still stuck in the wood. I may try to get pics later but I am in shock right now. The knife was zero ground with a 180 grit belt on the belt sander and I was careful to control the heat. But it was really thin and I did burn the tip. BUT I GROUND THE BURNT STEEL OFF and restored the original sheepsfoot shape. I had to micro bevel the knife on a strop to stop rolling but I have been using the knife since. It has been over a week of heavy carving since I reground the knife. Works wonders on wood though.
good luck on your project, those are neat