Stone drill core bits have a diamond-impregnated tip or rim designed for efficient and precise drilling. The diamond particles are embedded in the metal matrix, providing superior hardness and abrasion resistance, allowing for effective drilling through hard stone surfaces.

The core bit is designed to extract a cylindrical core sample from the stone. As the bit cuts into the stone, it creates a cylindrical hole while retaining the core within the bit. This allows for further analysis or installation of objects such as pipes or cables within the drilled hole.

Stone drill core bits are typically used with water as a coolant during the drilling process. Wet drilling helps to lubricate the bit, cool it down, and control dust. The water flow also aids in flushing out debris from the drilled hole, ensuring smoother and cleaner cuts.