... . soft bond for hard material 4. coorespondent formulaes for exact stone Usage:1. For stones, such as granite, marble, natural ... stones, etc.2. For grinding, leveling, shaping and polishing stone surface, corners,edges and angles. Other sizes and types as ... body: metal, eluminum; with or without holesDifferent turbo as below:- 4 inch double turbo diamond cup grinder with aluminum body in 22.23 ...