Diamond drill bit with M14 thread, high-performance brazed hollow hole drill bit for tile/granite/marble/porcelain/glass/ceramic (55 mm)

Professional quality: Diamond hole saws with vacuum welding technology for dry or wet drilling. Suitable for DIY enthusiasts and professionals. Cut a perfect circle: The sharpened diamond edges ensure superior and efficient operation, ideal for cutting precise holes quickly and smoothly. Durability: Thanks to a wider and denser diamond coating, its durability is more than 10 times greater than other common diamond hole saws. Compatibility: Fits angle grinders and other drills with an M14 adapter. Ideal for drilling holes in tile, granite, marble, porcelain, glass, and ceramic. Note: Start drilling at a 45-degree angle and drill vertically once the crescent edge is cut to prevent the hole saw from slipping. Use water to keep it moist and cool throughout its lifespan.