60mm Diamond Hole Saw Set for Glass, Marble, Ceramic, Tiles

– 60mm – Rustless & Durable: Made of high strength carbon steel with smooth nickel plating surface to extend the service life. – Quick, Sharp & Smooth Cut: Coated with high quality Diamond sharp, high precision and smooth cut with no broken edges fast – Suitable for drilling Glass, Tile Bottles, Blocks Jars, Fiberglass, Porcelain, Tile, Ceramic, Slate Mable, Granite, Light Stone – Not for use on Concrete or for depths beyond about 1/2″ – Attention: Please keep the speed in 800-1000 per minute, keep adding water to keep the drill cool