How to determine the level of diamond saw blades

In general, diamond saw blade working environment is bad, products are mainly used for sawing stone, widely used in marble, granite, ceramic tiles and concrete products for cutting, is stone, building industrial saw blades  materials industry, an important and widely used processing tools.
Circular saw blades cutting with easy operation, high efficiency, good processing quality and other advantages. But noisy, blade rigidity. Easy to produce during cutting blade runout, deviation, resulting in the parallelism of the workpiece to be cut is poor. Saw cutting spindle bear a large force, the swing generated during the cutting, but not cut out straight, the blade thickness can be increased despite increased rigidity, it is  diamond polishing tools still difficult to ensure parallelism of the slice. In addition, the increased thickness of the blade not only increases costs, but also increases the kerf width reduces the volume ratio. Cylindrical cutting line speed is higher, up to 50m / s, the diameter of the saw blade cutting depth by limiting, usually less than the diameter of the third. Currently, the cutting depth is generally not more than 1 meter. The  carbide drill bits most critical quality diamond saw blade with diamond granularity necessary, which is testing the wear resistance of diamond saw blades and sharp the most important indicators.