High Compatibility: The 5 in wet core drill bit utilizes a 1-1/4 in-7 universal thread, allowing quick and easy attachment to standard handheld drills or stand drills, providing versatility and convenience Wet Driller: This diamond wet coring bit is suitable for wet-cutting conditions. It reduces heat buildup that can affect performance for an extended lifespan. It also lowers friction resistance and boosts drilling speed for efficient operation Durable & Sturdy: Crafted from quality carbon steel with high-precision welding, this concrete core drill bit boasts 95HRB hardness. It resists heat buildup during high-speed drilling, avoiding blade detachment and enhancing longevity High-Performance Drilling: Our core bits for concrete features precision-ground teeth for smooth, burr-free edges and faster, accurate cuts