These are stone carver’s rifflers, but unlike any that I have ever seen. Instead of having stitched teeth they have cut recesses along an edge. These look like they would be used to refine features on carved patterns/figures.

The organically curved one has two different radii on the curvatures on either end.

Cost me $9 a piece. So unique, I tried to use Google Lens to find out more information but couldn’t find an exact match. Never seen anything like these before.

I will be adding them to my collection of stone carving rifflers.

Still need cleaning up.

You can see how different they are from a normal set of stone carving rifflers with stitched teeth.

Would love to know more if anyone has any additional info.