DEWALT 4-1/2 in. Concrete and Brick Diamond Circular Saw Blade DW4701 - The Home Depot
Amazon.com : Stark 3200W Electric 16" Concrete Cutter Saw Circular Wet/Dry Guide Roller w/Water Line Attachment (Blade not Included) Cut Off Saw, Demo Saw, Disc Cutter, Power Cutter : Tools & Home