7" Ceramic Hybrid Edge Cutting Grinding Wheels Super Concrete Tools Ltd. Base Info Model NO.:CP-01Manufacturing Process:BrazingShape:Cup-ShapedBonding Agent:CeramicConnector:M14 or 5,8-11"Grit:30# to 400#Trademark:Super Concrete ToolsSpecification:5 inch, 7 inchOrigin:Xiamen Description Pre:Rosex Diamond Concrete Floor Polishing Pads Next:Drilling Barrels for Diamond Core Drill Bits, with 1/2"Bsp