Welcome to Dearborn Bortec, founded by Howard K. Dearborn, a well-known specialist in deep hole drilling. With Howard's expertise and his specially designed equipment we provide our customers with innovative solutions to extraordinary challenges involving deep hole drilling. We can accommodate many different materials including alloy steels, nickel-based alloys, non-magnetic materials and plastics. Some of our capabilities are: Deep Hole Drilling 1/4" Dia. to 1"Dia. Depths up to 10 feet Tube "Hollows" up to 6" Dia. x 30' length Drill Collars Pattern Drilling Platens Precision Tubular Products Concentric/Uniform Wall Tubing Material Capabilities Industries we service but are not limited to include aerospace, paper printing, plastics, medical and nuclear.