Hollow Boring, Inc. was founded in 1978. We are experienced at drilling holes in mold plates and manifold plates. Our machinery has the capability to drill on-center or off-center and maintains high accuracy using digital positioning.     Rounds or hex bars, castings of any size, shape or configuration. Ferrous, non-ferrous metals and most alloys are no match for our deep hole drilling abilities.Our standards for deep hole drilling are high. Hollow Boring, Inc. has become synonymous with the highest quality deep hole drilling and boring      QUALITY It's old fashioned now, but we do what we say we're going to do. Plain and simple. Our word is bond, and that applies to our deadlines, as well.      When you're dealing with deep hole drilling and boring, your tools can make all the difference in the world. At Hollow Boring, Inc., we're continually finding the best  tooling  and lubricants  for a variety of deep hole drilling operations.