<b>Individually packaged: the diamond drill bits are placed in 1 individual plastic box, you can easily find and use them.</b> <b>Simple operation: suitable for drilling dry or wet. You can work in all conditions. The perfect tool is at hand. You too can do your job like a master!</b> <b>MULTIPLE APPLICATIONS: Ideal for porcelain, glass tile, ceramic, ceramic tile, granite, marble, quartz, limestone, fiberglass terrazzo, masonry, quartzite and ceramic tile. sandstone.</b> <b>Reasonable size: Because diamonds are sharp and extremely hard, diamond drill bits guarantee clean and fast professional drilling. Thanks to high-quality industrial diamonds, millings can be cut quickly.</b> <b>High quality: thanks to sintered diamond segments and maximum precision, the cup wheel has a long life of life. Sintering can achieve high fracture toughness, which makes the diamond material less susceptible to impact. It has particularly high strength and heat dissipation and prolongs service life. In addition, the cup wheel adopts high quality, temperature resistance and vibration reduction.</b>