... Hardness: HRC64°66°and HRC68°70°·Features: cutting blades require higher precision. The blades provided by us are smaller than 5/1000mm ... applied, it can be applied in medium speed cutting and finish cutting of various materials with HRC28°. It has excellent ... has extensive application. Generally, it is applied for thicker cutting, discontinuous cutting and bad part fixture. After being coated, it has ...