... Bond (80) - For cutting soft, abrasive surfaces. Ring Saw Blades - For cutting river rock, granite, heavily reinforced concrete, ... over 6000 PSI tensile strength Shavemaster Blades - For grooving concrete, Hex Arbor. Concrete saw blades are used for cutting concrete, hard ... undercut protection with a heavy duty core. Concrete diamond saw blades are intended to withstand hard use. Although a concrete ...