Able to cut 2-3 more concrete than lower quality blades dues to Premium Bond that provide the optimal cut-to-wear ratio, optimized for balanced cut life, cut rate, cut precision, power demands & heat buildup, allowing you to cut longer, consistently precise with moderate power demands with the lowest heat buildup in the industry Can be used for ferrous metals, iron, steel, stainless steel, rebar, copper, and other high tensile alloy Longer, Faster and Reliably than other blades that may warp or prematurely wear Vacuum brazed technology for a longer life span and maintains the blade's diameter Each blade is engineered to work at 5,500 RPM and a maximum cutting depth of 1" to 1-1/4 inch Max RPM: 5,500; Ratio of 65:1