The Marcrist The Mi750 series diamond blades are the perfect blade for professional universal cutting when endurance matters. They have an extremely long life and fast cutting in all building materials, concrete products, granite, natural stone and reinforced concrete / concrete with steel. Suitable for wet and dry cutting with angle grinders, power cutters, table saws and floor saws.The Marcrist 75030020 Mi750 Diamond Blade has the following specifications: Diameter: 300mm. Bore: 20mm.