Core drilling is required when a circular penetration is needed on a wall or slab. Typical applications can be used for, but not limited to, Plumbing Pipe installation, Electrical, HVAC, Telecommunication Lines, Anchor Bolts, Hand Rails, Core Sample Analysis or any other need for a round penetration. Typical size holes range from 1 inch to 48 inch in diameter. Depths of Cored Holes is typically unlimited.