For the supreme series of our professional quality wet cut cured concrete blades, we feature a higher diamond concentrate (40) to deliver the performance the performance you are counting on with high horsepower walk behind saws ( 35 - 65 HP). Use these blades to make you more competitive in your bidding. They deliver lower cost per inch foot. The bond will be specifically mixed to match your area aggregate. Feel free to have us customize these blades to match your specifications, just call us at 1 (866) 831-2846