When we started the Ultra-Shear project, we wanted our inserts to perform at a higher level than any others on the market. We talked to dozens of carbide manufacturers throughout the country, and finally found one that understands the special requirements of wood-turning. Turns out our perfect partner was just a couple hours away, right here in Ohio. What’s so special about these particular carbide inserts? Briefly, it’s the grain structure of the carbide, the level of polish on the face surface and the quality of the grind on the bevel.