... 2. For grinding, leveling, shaping and polishing stone surface, corners,edges and angles. Other sizes and types as below:- Size(inch)3, 4, 5 ... , 6, 7, 8, 9TypeSingle Row, Double Row, Turbo Row, Radial, SnailConnection22.23mm, 5/8inch -11, M14 ... : metal, eluminum; with or without holesDifferent turbo as below:- 4 inch double turbo diamond cup grinder with aluminum body in 22 ...