About this item

Product Features 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 a 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, to 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.