The MK-303 Professional grade diamond blade has been designed for cutting rare and valuable materials (i.e. agate, quartz, petrified wood, jasper, jade, etc) when waste needs to be held to a minimum and speed of cut is essential. The MK-303 produces smoother cuts, lasts longer and cuts faster than notched rim or plated diamond blades. Designed for use with a water soluble coolant. Blades 16″ and larger have segmented rims.