Features and Benefits:1", 20MM ArborDesgined to be used Wet or DryExtended LifeFast CuttingFor use in green concrete and highly abrasive materials such as asphaltMilwaukee diamond blades are designed to the highest standards, only using quality diamonds. Available in sizes 4 in. to 14 in. Milwaukee's diamond blade line will cover a full range of materials including specialized blades for green concrete, asphalt, and ductile iron. All Milwaukee blades are designed for both wet and dry cutting.