Diamond Products 20966 Circular Saw Blade, 4 in Dia, 7/8 in Arbor, 6-Teeth, Diamond Cutting Edge

General-purpose blade used for cuts in concrete or hard materials with an electric circular saw or right-angle grinder. This is a "Dry" blade, however, dry blades can be used with water for cooling. Therefore, it can be both dry and wet. Long life, fast cutting.