... stones,brick, concrete etc. Diamond Cup Grinding Wheel1.Diameter:100mm-150mm2.High quality-Hot pressed3.Working type: single row, double rows and turbo segment.4 ... diamond files, diamond saw blades (diamond wheel, disc), diamond whetstones (diamond sharpening stone), diamond mounted points (bur),diamond core drill bits (diamond hole saw), diamond grinding and cutting wheels(diamond polishing wheel ...