Core drilling of reinforced concrete for both domestic and industrial, we also do stitch coring for bigger openings &core to any depth, for both horizontal &vertical. our core diameters range from 1inch, 2inch, 3 inch, 4inch, 5 inch, 6 inch, 7 inch , 8 inch , 10inch. price of core varies by size, thickness of concrete & type of concrete , call now for free quote/estimate.costumer satisfaction guaranteed, 15 years experience.