Brazed diamond cup wheel Grit: #30, #40, #50, #60,#80,#100 Size: 4",4.5",5" Brazed Diamond Cup WheelGrit: #30, #40, #50, #60,#80,#100Size: ... 4",4.5",5"This cup wheel ... With special design and world-advanced technology of diamond brazing, the surface of grinding cup wheel will be free grinding, the grinding effect ...