... 1.Size:4",4.5",5",7",9'',10'' 2.for rough medium fine floor 3.High efficiency and durable Turbo ... 1.Size:4",4.5",5",7",9'',10'' 2.for rough medium fine floor 3.High efficiency and durable Turbo ... style arranged segments are brazed on the cup wheel used for fast grinding concrete surface and floor. Big holes provide more ...