Ideal for large extractor fans, commercial ventilation ducting, and major service access points, this 120 mm diamond core drill cuts precisely through the most challenging materials without causing fractures. It features a reinforced steel body and a high-concentration vacuum-brazed diamond rim to handle the immense forces of large-diameter dry drilling with an angle grinder. The M14 thread provides a secure mount, and the segment design is optimized for efficient debris removal and cooling. This makes it an ultimate tool for specialized industrial, commercial, and high-end residential installations.