GRAFF Expert 350x15x3.0x25.4/20 mm professional diamond cutting blade for reinforced concrete and stone. 15 mm high segments are attached to the blade body by laser soldering, which provides a reliable and durable connection for an even longer lifespan of the blade. It is recommended to use the blade with coolant but dry cutting is also acceptable in case maximum rotation speed does not exceed 4.365 rpm. Cutting thickness is 3.0 mm. The blade can be installed on both Stihl power cutters with 20 mm and power cutters of other manufacturers with 25.4 mm bore diameter.