VEVOR Diamond Drill Bits 7PCS Diamond Hole Saw 6/6/8/8/10/12/14mm Tile Hole Saw Kit Vacuum Brazed Diamond Drill Bit 0.59in/15mm Segment Tile Hole Saw w Storage Case for Tile Ceramic Porcelain Marble

Efficient & Smooth Cutting: The glass drill bit is made of premium grade diamond, delivers more effective performance than a traditional carbide or bi-metal hole saw. Vacuum brazing technology makes it highly thermostable and durable to use. Complete Tool Set: Our porcelain drill bit includes 7 sizes:1/4"，1/4", 5/16"，5/16", 3/8", 1/2", 3/5". It features 5-inch saw blade. Having these types available will help you cover almost all of your applications. The drill set also comes with a storage case for your convenient carrying. Humanized Structure: This hole saw drill bit set adopts 5/8"-11 universal thread, suits for angle grinder. The design of U-shaped chip grooves provides longer working life, fast and smooth drilling. Simple Operation: The diamond hole saw drill bit set can be used both dry and wet, meet your various needs, recommended adding some water to prolong the service life. Wide Application: The diamond drill bit set ensures a clean and accurate hole on porcelain tile, granite, marble, and stone. It also applies to masonry, brick, and all similar materials.