The CorePlus 117mm Diamond Dry Core Drill Bit is designed for substantial drilling applications where larger diameter holes are required in masonry, concrete, and stone materials. At 117mm diameter, this core bit excels in heavy-duty installation work, including large-scale ventilation systems, substantial drainage pipes, or major utility access points. This professional-grade bit features 8mm diamond segments with a high concentration of premium-grade diamond in the bond, utilising leading-edge
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