The Bosch Universal Diamond Dry Core Cutter in 127mm is the largest in this range, engineered for major penetration work including large-bore soil and waste pipes, ventilation systems, and significant service duct installations through masonry. The 127mm cutting diameter is ideal where maximum bore size is required. Laser-welded diamond segments ensure this large-diameter cutter maintains its performance across demanding dry masonry drilling tasks, cutting efficiently through limestone, brick, and masonry without the need for water cooling. It’s a robust, professional-grade solution for the most challenging on-site requirements. Compatible with ½-inch threaded diamond drills, it connects effortlessly to standard diamond drilling equipment already in use. Features and Benefits: • Laser-welded diamond segments for maximum durability at large diameters • Dry masonry drilling — no water required, even at this scale • Suitable for limestone, brick, and masonry • Ideal for large-bore soil pipes, ventilation systems, and service ducts • Fits ½-inch threaded diamond drills