Our Services

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Deep Hole Drilling

Deep hole drilling technology was developed by our founder Howard K. Dearborn in order to maintain strict tight tolerances at great depths in various unique parts. Deep Hole drilling is not gundrilling. Deep Hole drilling is performed on a stationary part with our custom specialized Bortec drilling machines. With this technology our experienced highly skilled drilling engineers are capable of:

  • Drilling blind or through holes
  • Drilling depths to 10 feet
  • Drilling up to 2.000″ diameter holes
  • Maintain unmatched precision tolerances
  • Produce a better surface finish with standard tooling

Pattern Drilling

If your components require a special pattern or array of holes Dearborn Bortec’s machines can accommodate them

If you are interested in a quote for pattern drilling be sure to provide the specific hole sizes, locations, and depths your application needs.

Drawings can be emailed to Bortec any time to [email protected]

CNC Machining

CNC Mills – Milling Capabilities:

  • 2D & 3D machining
  • 4 Axis machining
  • 40″ X Travel
  • 19″ Y Travel
  • 20″ Z Travel

CNC Lathes – Turning Capabilities

  • 10″ Chuck
  • 3″ Spindle Bore
  • Live B Axis
  • 16″ Z Travel
  • 16″ Maximum Diameter
  • Mill Turn Capable

Material Capabilities:

The following is a brief list of materials compatible with our deep hole drilling services.
If your material is not on the list do not hesitate to request yours.

  • Aluminum
  • Nickel-based alloys
  • Alloy Steels
  • Beryllium
  • Titanium
  • Zirconium
  • Plastics