Brazed diamond core drill bit kit for tile and glass, 1/4 to 2 inches

【Brazed Cutting Edge】The vacuum-brazed cutting blade incorporates diamond segments that maintain their sharpness on dense tile, glass, and granite, resisting heat buildup during dry use and producing burr-free holes without chipping the workpiece surface. 【Anti-Clogging Teeth】Multiple chip-evacuation grooves on the pilot bits quickly expel dust and debris, preventing frequent clogging or overheating that slows down work on ceramic and stone, ensuring a clean, scratch-free finish. 【Drilling Guide】The beaded EVA positioning jig creates a tight seal on smooth surfaces, locking the drill bit in place to eliminate drift and slippage that often damage polished floor or wall tiles during the initial cut. 【Dual Wet/Dry Mode】Switch from efficient dry cutting with self-cooling properties to wet cutting for extended life. The tool's lifespan is extended and dust is reduced, making it suitable for both residential and commercial renovations without the need to change tools. [Complete Renovation Kit] Comes with 12 saws from 6mm to 50mm, two serrated bits, an ejector pin, and a hard case, keeping components organized for quick hex chuck changes and vibration-free drilling in bathroom, kitchen, or flooring projects.