Beveled Crack-Chaser Diamond Blades - Premium (Wet/Dry) - Size: 4" x cont. type x 5/8"-11 thread. Specification: CRC35. Premium Flat Saw Blades: An excellent initial value, these blades comes in specs to suite the cured concrete you need to cut. Harder segment configuration is designed for longer life and fast, efficient cutting of abrasive materials like green concrete, asphalt and concrete block.