HNDO PRECISION CNC MACHINING

Bridging the gap between idea and reality for your prototyping and manufacturing needs.

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Jeff Henderson

President, HNDO Precision LLC

About HNDO Precision

HNDO Precision is a San Francisco Bay Area CNC machine shop specializing in high precision milled components, rapid prototyping, and low volume production. We partner with engineering teams, product developers, and manufacturers who require tight tolerances, fast turnaround times, and consistent quality.

We serve industries that demand precision and reliability, including:

  • Automotive aftermarket and performance parts

  • Robotics and automation companies

  • Technology hardware startups and established OEMs

  • Aerospace suppliers

  • Medical device manufacturers

Located in Northern California, HNDO Precision supports companies nationwide from concept to production with advanced CNC milling, CAD/CAM integration, and rigorous quality control processes. We understand the pace of innovation in Silicon Valley and surrounding regions, and we operate with the responsiveness and technical discipline required to meet aggressive development timelines.

Our Services

  • CNC milling for aluminum, steel, stainless steel, specialty alloys, and plastics

  • Prototype machining for product development

  • Small batch and short-run production

  • Tight tolerance machining

  • Precision fixturing and custom components

  • Engineering collaboration and design for manufacturability feedback

  • Post-processing finishing

Our Capabilities

HNDO Precision provides precision CNC machining and in-house finishing support for prototype and low-volume production programs. Our equipment and processes are optimized for tight tolerance milled components, rapid development cycles, and consistent quality.

CNC Milling

We operate two precision 3-axis CNC mills configured for accurate, repeatable production of complex milled components.

Capabilities include:

  • Precision 3-axis milling

  • Tight tolerance machining

  • Aluminum, stainless steel, steel, and engineering materials

  • Prototype and low-volume production runs

  • Custom brackets, housings, plates, and performance components

  • Precision fixturing solutions

Our workflow is built around efficient CAM programming and disciplined inspection processes to ensure dimensional accuracy and repeatability.

Fiber Laser Marking

In-house 30 watt fiber laser marking provides permanent, high-contrast identification on metal components.

Applications include:

  • Part numbers and serial numbers

  • Logos and branding

  • QR codes and traceability marking

  • Deep engraving and surface marking

  • Anodized aluminum marking

This allows customers to receive finished, production-ready components without outsourcing marking operations.

Surface Finishing Support

Vibratory Tumbling

In-house parts tumbling improves edge condition, surface consistency, and cosmetic finish prior to coating or final delivery.

Approved Post-Processing Partners

HNDO Precision works with vetted third-party finishing vendors to provide:

  • Anodizing

  • Chem film

  • Powder coating

  • Plating

  • Specialty coatings

All finishing partners are selected for quality consistency and reliability to ensure finished parts meet specification and visual standards.

Additive Manufacturing Support

FDM 3D Printing

Our FDM 3D printing capability supports:

  • Rapid concept validation

  • Fit and function testing

  • Fixture development

  • Low-cost prototype iterations

This allows faster development cycles before committing to machined production parts.