About Us

About K&S Precision Machining

K&S Precision Machining, Inc. was founded by father and son, Kaz and Sebastian Stolarski, in 2001. Our ISO 9001: 2015 compliant facility is located at 1273 Forgewood Ave. Sunnyvale, CA 94089. Operating 28 machines on 10,500 sq-ft shop floor space, K&S has the capacity to provide production at all volumes. K&S forms lasting relationships with employees, vendors, and customers alike. Ninety percent of all business is based on referrals which speaks volumes on our attentiveness to our customers' needs.

Medical Industry Specialization

K&S specializes in small-and high-volume manufacturing of high quality, precise, and reliable parts used in the medical device industry.

The parts we have produced for our customers have been used to manufacture devices, which have successfully achieved FDA regulatory approvals/clearances, EU CE Mark, and other international regulatory approvals.  K&S engages with our customers from research & development to manufacturing to ensure project success.  In addition to producing parts, we also produce tools that are used as aids in the manufacturing of medical devices.


  • Zeiss CMM (Model:Contura G2)
  • Keyence Vision System
  • Starrett Optical Comparator
  • HD200VP UM Digital Camera
  • Full Complement of precision micrometers, calipers, surface plates, digital height indicators, standard plug, ring & thread gages

K&S Precision Machining Services

With over 40 years of experience and expertise, K&S provides the highest quality products, services, and components in the industry. Our skilled team of technicians, operators, machinists, and engineers ensure we deliver unmatched craftsmanship and quality every time. No matter the complexity, the specifications, or how tight the tolerance, our Bay Area team is ready for the challenge. If you would like more information regarding our capabilities, please feel free to browse our equipment list. We invite you to give us a call or request a quote anytime.

Equipment List

Our services include:

  • Production and Prototype Machining
  • Turning
  • Assemblies
  • Swiss Screw Machining
  • Lights-out Operations within our Cell Systems
  • Precision Tooling
  • Casting Patterns
  • Presentation Models
  • Precision Surface and Cylindrical Grinding
  • Engineering Support
  • Welding and Fabrication
  • Laser Engraving


K&S Precision Machining delivers the highest quality parts, services, and components for an array of industries from our facility in Sunnyvale, California. We take great pride in delivering specialized expertise, unmatched quality, and superior customer service.


K&S – Serves

K&S provides custom machining to engineers, designers, and developers with full support from R&D to production. We deliver the highest quality parts, services and, components for the following industries:

Our targets markets include but not limited:

  • Medical Device
  • Aerospace
  • Technology/Semiconductor
  • Biotechnology/Pharmaceutical
  • Automotive/EV Vehicles
  • Energy
  • Laser/Optics
  • Robotics
  • Consumer Goods

Our services to target markets include but not limited to:

  • Prototyping
  • Manufacturability support
  • R&D parts
  • R&D and Production fixtures
  • Production parts and assemblies
  • CMM Inspection

K&S Customer Service-Based Approach

K&S offers innovative solutions designed to increase efficiency and productivity that reduce total costs for our customers. Our experienced team provides precision machining, functional prototype, engineering support at a price that will impact your bottom-line.

Additional advantages of partnering with us include but are not limited to:

  • Proven cost-effective solutions that save time and money
  • Quality systems in line with ISO9001
  • Quality Management System
  • Full Internal Quality Auditing Program
  • Complete quality inspection equipment
  • The highest quality technicians, operators, machinists, and engineers in the industry
  • Unmatched quality, on-time delivery, and short lead times
  • Strategically located in Sunnyvale, California
  • Safe and green business practices designed to support workplace and environmental safety
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