The Zephyr Diamond Ring Saw offers advantages not found in other glass saws. 7” Diameter ring saw blade included .The round blade can cut in any direction, and operation is very smooth and quiet. The Zephyr saw has a large work surface that is free of obstructions. The overhead blade support is slender, allowing the artist to have a very clear view of the material as it is cut. It can cut glass, tile, rock and other similar hard materials.