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Precision Machining

Tri-State Manufacturing serves aerospace and consumer product manufacturers. Tri-State adheres to state-of-the-art practices for inspecting, tracking, certifying and reporting on the work that we do.

  • Aerospace
  • Specials
  • Medical Device
  • Electronic
what we do

Precision Parts Manufacturing for Companies in Southern California

We at Tri-State Manufacturing specialize in making precision parts for manufacturers and distributors throughout Southern California. Our team uses Davenport and Swiss Screw machines to meet the demands of our loyal customers. After more than three decades, our efforts have resulted in simple, yet critically important practices:

  • We work with customers to clarify and refine their requirements.
  • We commit only to what we can deliver.
  • We employ strict quality control, purchasing, and inspection processes.
  • We maintain low overhead to ensure competitive pricing.


Modern Lean production requires close cooperation and open communication among internal functions and external suppliers. Tri-State Manufacturing has been working with customers this way since long before Lean was a widely accepted standard.

Davenport and Swiss Screw Machine Products

Our fleet of very high-speed multi-spindle (Davenport) and single spindle (Swiss) machines lets us create components and finished products ranging from 1/64” to 7/8” in diameter. In addition to turning operations, we augment the basic machines with a remarkable collection of attachments and accessories for drilling, broaching, slotting, cross-holes, threading, tapping, crimping, deburring, etc.

Some work is done as an off-machine second operation to meet speed, complexity or cost containment goals. When this variety of equipment is coupled with the skills of our team, we have the flexibility to address most requirements. Customers often ask Tri-State to manage specialized activities such as heat treating, plating, dry coating and passivating through our proven partners. Contact us today to discover what Tri-State Manufacturing can do for you.

Our team uses the following materials:

  • Stainless Steels
  • Carbon Steels
  • Aluminum
  • Brass
  • Aircraft Alloys
  • Titanium
  • Plastics

Our products include:

  • Aircraft components
  • Fasteners
  • Hydraulics
  • Bushings
  • Connectors
  • Standoffs
  • Grommets