Our 115 series is a supreme quality continuous rim tile diamond blade. PR Diamond's continuous rim design allows these blades to cut faster, cleaner and give maximum life possible. These supreme quality blades work excellent on hard vitreous materials such as ceramic tile, marble and softer granites. They contain 38-40% diamond concentration and are silver soldered; therefore they must be used wet. Without a doubt we use the highest quality core and guarantee no wobbling or veering off in your cuts.