Zeeorymn Porcelain Tile Dry Drill Bits Set,Diamond Hole Saw Kit,6mm+6/6/8/10mm with Quick Change Hex Shank for Granite, Marble, Porcelain, Glass, Stone

Built-in Cooling Wax & Rust-Proof Coating: Boost Drilling Performance & Longevity. Our upgraded dry diamond drill bits are filled with wax lubricant- it melts during dry drilling to cool the cutting surface (adding water further extends bit life). The rust-resistant coating ensures faster cutting speed and longer service life, saving you replacement costs 5PCS Versatile Size Kit: Meet Multiple Drilling Needs. This set includes 4 diamond drill bits (2×6mm, 8mm, 10mm) + 1 carbide drill bit;Diamond grit: 50/60 Wide Application: Ideal for Hard Materials. Perfect for drilling stone, granite, marble, ceramic, tile, and hard porcelain-suitable for both industrial heavy-duty tasks and home renovation projects Universal Compatibility & Practical Design. The sturdy hex shank fits most tools (drills, angle grinders, bench drills). Built-in side slots clear debris for smooth, fast drilling; depth markings help you achieve precise hole depths for professional results Easy to Operate: Simple Drilling Steps for Beginners. Start drilling at a 45° angle to position the bit, then gradually tilt the tool to an upright (90°) position-no professional skills needed, making your drilling work efficient and hassle-free