Package Size: Length: 7.3 inches (185 mm), Width: 5.7 inches (145 mm), Height: 0.2 inches (6 mm); Package Weight: 5.5 oz (156 g); Country of Origin: Japan; Uses: Dry cutting, granite and hard concrete; Outer Diameter: 4.1 inches (105 mm); Thickness: 0.08 inches (20 mm); Electric Tools: Hitachi, Makita Riobi, Suitable for: Granite, Granite. Hard Concrete, Concrete 2 Product etc.; Maximum rotation speed: 14500 min-1; Accessories: 15 rings included