... Type: ManufacturersOEMAcceptPort of shipmentShanghai or NingboPlace of OriginJiangsu,ChinaSintered Continuous Cup Grinding Wheel Outer diameter inner hole sizeSegment DimensionInchesMetric(mm)4"100205x104 ... "12522.235x106"15022.235x107"18022.235x10Double Row Diamond Grinding Cup Wheel for Concrete1. Usage: for grinding and sharpen marble, granite, concrete, tiles, masonry ...