The toughest cutting jobs require the toughest tools, and our Premium Diamond Disc Cutter Blade is impregnated with even more diamond to provide a cutting surface that will deliver cut after cut in the toughest working conditions. Our hardest working Premium Diamond disc cutter blades, last longer and cut quicker than the general-purpose version. In the cost vs lifetime equation, there's no contest. Compatible with the R230DCT Concrete Cutting Saw Hot pressed and higher diamond concentration delivers 10% faster cutting and longer life than our general purpose diamond blade. *Internal Testing. Engineered for aggressive cutting on both hard and abrasive masonry, hard brick, block, roof tile, pavers, stone, concrete, and steel re-enforced concrete. Ideal for professional landscapers and masons. Specifications Dia.: 230mm Max. Speed: 6650 RPM Bore / Arbor: 22.2mm Rim: Segmented Base Thickness: 2mm Segment / Tooth Thickness: 2.5mm Segment / Tooth Height: 10 Segment / Tooth Quantity: 16