VEVOR Wet Diamond Core Drill Bit This specialized diamond core drill bit utilizes high-frequency laser welding technology, providing fast and clean drilling. The 1-1/4"-7 universal thread makes it an ideal choice for versatile machines used on reinforced concrete, red bricks, concrete, foam bricks, and more. Precision Engineered Design Dust-Free Wet Cutting Smooth and Efficient Wide Applications VEVOR Wet Diamond Core Drill Bit Our core drill bit is crafted from high-quality carbon steel with diamond-grit teeth. Diamond is one of the hardest materials on Earth, ensuring outstanding wear resistance. The diamond-grit core drill bit remains sharp and extends its lifespan when cutting and grinding tough materials. Key Features Precision Engineered Design: Our core drill bit is designed with universal 1-1/4"-7 thread, making it easy to quickly assemble onto standard core drilling equipment, providing versatility and convenience. Dust-Free Wet Cutting: Our diamond core drill bit reduces