Dearborn Bortec
Dearborn Bortec

Fabrication shop, Bending shop Maine, USA, Job Shop / Contract Manufacturer

Welcome to Dearborn Bortec,
founded in 2002 by Howard K. Dearborn, a well-known specialist in deep-hole drilling. At Dearborn Bortec, we welcome standard machining jobs. In addition, we specialize in parts requiring operations not typically performed in other machine shops. Special operations include deep-hole drilling of single-hole or multi-hole patterns, inside finishing of long tubular parts and turning/boring of long parts requiring
large diameter hollow-spindle capability.

Located in Fryeburg, Maine our new facility is equipped with our own specially designed and built machines to accurately drill small deep holes in a variety of materials. With our larger
machines, we can perform conventional turning, drilling and boring operations on long parts, as well as perform deep-hole drilling.

Our machining specialists welcome the opportunity to assist our customers in overcoming product and process design challenges. We can accommodate most ferrous and non-ferrous metals including alloy steels, nickel-based alloys, non-magnetic materials as well as plastics.

Regardless of your application, we'd love the opportunity to quote your deep hole drilling needs. If you are not sure how to proceed with your project or if you are unsure whether or not deep hole drilling is the right solution for you don't hesitate to contact Dearborn Bortec first!



Partial List of Capabilities:

Precision Deep-Hole drilling to 1” dia. x 160” deep

Large diameter boring to 30” x 120” deep

Large dia. turning to 30” x 240” length

CNC multi-axis Mill/Turn to 18” dia. x 29” length

CNC horizontal milling 19” x 19” pallet size

Cylindrical grinding to 5” dia. x 16”



Bortec Machining Equipment:

Mazak Integrex 100-SY CNC Multi-Axis Machining Center

Mazak H500/50 CNC Horizontal Milling Center

Two Custom Dearborn Bortec Deep Hole Drilling Machines

Leblond Regal 24” x 144” Lathe, 5.125 Hollow Spindle

Leblond Regal 30” x 240” Lathe, 12” Hollow Spindle

Two Clausing 15” x 50” Lathes, 2.125 Spindle

Two 9” x 48” Vertical Milling Machines


  • Alloy Steel
  • Carbon Steel
  • Stainless Steel
  • Tool Steel
  • Aluminum
  • Brass
  • Bronze
  • Cobalt
  • Copper
  • Lead
  • Nickel
  • Tin
  • Titanium
  • Zinc
  • acylic


  • Aerospace
  • Agriculture and Forestry
  • Automotive
  • Biotechnology / Pharmaceuticals
  • Electronics and Semiconductor
  • Engineering and Design
  • Goverment Military
  • Goverment Non-Military
  • HVAC (Heating Ventilation and Air Conditioning)
  • Machinery and Tools
  • Medical
  • Oil & Gas
  • Paper
  • Telecommunications
  • Transportation


  • CNC Lathe machine
  • CNC Mill
  • small hole drilling machine
  • Manual Lathes and Mills

Dearborn Bortec , Get quotes online for manufacturing services at from machine shops, fabricators, job shops and contract manufacturers. connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience.

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  • Fryeburg, Maine
  • USA 04037