Bedrock's 12 segment cup wheels are good for thin mil coating removal and aggressive grinding applications. Wide gaps between segments help eliminate loading and gumming up of material. The angles segment helps eliminate horseshoe marks. This is a Premium Blade. Turbo Cup Wheels are brazed and deliver fast grinding speeds for stock removal and finishing concrete or field stone surfaces. These Turbo Cup Wheels feature venting holes to dissipate heat for extended wheel life. Our Premium Turbo Cup wheels are metal-bonded diamond tools with diamond segments used to grind, cut, shape or polish masonry surfaces. Engineered for commercial applications with an advanced dense diamond matrix and tested for durability, precision and consistency when cutting. Turbo design with a higher rim offers constant contact with material to produce aggressive cut. Ideal for Concrete and Field Stone. Comes in a Threaded High Hub