... formulaes for exact stone Usage:1. For stones, such as granite, marble, natural and artificial stones, etc.2. For grinding, leveling ... :- Size(inch)3, 4, 5, 6, 7, 8, 9TypeSingle Row, Double Row, Turbo Row, Radial, SnailConnection22.23mm, 5/8inch -11, M14 ... , eluminum; with or without holesDifferent turbo as below:- 4 inch double turbo diamond cup grinder with aluminum body in 22.23 ...