... Usage:1. For stones, such as granite, marble, natural and artificial stones, etc.2. For grinding, leveling, shaping and polishing stone ... ,edges and angles. Other sizes and types as below:- Size(inch)3, 4, 5, 6, 7, 8, 9TypeSingle Row, Double Row ... , eluminum; with or without holesDifferent turbo as below:- Sang 4 inch double turbo diamond cup grinder with aluminum body in 22 ...