... : single row 3. High quality & low price 4. Good performance Stone grinding wheel1. size: 4"-9"2. Type: single row 3 ... for using grinding and polishing marble, granite, masonry, natural & artificial stone surfaces. TypeDiameterHoleSegment Dimension (mm)Segment number (pc) SingleRow(mm)(mm ... /20305.77.2912516/20305.77.21018016/20305.77.224,14 Aluminum 100M14, M16, 5/8-11 sintered115M14, M16, 5/8-11 ...