PSC blades come in sizes 14” thru 18” and are specially designed to cut stone on a bridge saw. The segment bond and height (13mm) of the segments are specially designed to give the absolute best life and efficiency. KHK uses the highest grade and “size” industrial diamonds and metals to manufacture the segments of these blades which are mechanically sintered to the specially designed silent core. All of these blades have a 60mm arbor with an optional bushing for 50mm arbor. The silent core of this blade is actually a three piece lamination; consisting of a thin layer of copper, sandwiched between two pieces of steel. Compared to the price of other brands of silent core stone blades, this blade is truly a great value.