Description This diamond blade is used for cutting masonry products, granite, marble, concrete, brick and block. Fast cutting and very efficient. All blades may be used wet or dry cutting. Features advanced high density bond, high center strength and high diamond concentration. Long life. Wheel size 4-1/2" x .080" Dimond Width 7mm. Arbor and bushing ID's 7/8"-20mm-5/8". Maximum RPM 13700.