Diameter4",5", 6", 7"; Inner size:22.23mm, M14, 5/8"-11; Rough,Medium and Fine Ali body is available Professional double row grinding wheelFeatures:This professional double row diamond grinding cup wheels is for fast stock removal of concrete, stone.It is perfect for finer grinding.Application:Granite, marble, concrete products, masonry material and all types of natural stoneMachinery:Angle ...