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Our SUS316 CNC lathe parts are expertly machined to deliver outstanding precision, durability, and corrosion resistance. Crafted from high-quality SUS316 stainless steel, these components are ideal for demanding applications across medi

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This high-precision lathe-machined part is made from SUS316 stainless steel, known for its excellent corrosion resistance, strength, and durability. Ideal for applications in m

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This high-performance lathe component is manufactured from premium AL7075-T6 aluminum, renowned for its exceptional strength, lightweight properties, and excellent machinability. Precision-turned using advanced CNC l

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Wholesale CNC Precision Parts

Runkey Parts is a trusted CNC precision parts supplier, delivering high-quality, wholesale CNC precision parts for OEMs, contract manufacturers, and product designers worldwide. We combine modern multi-axis CNC machining, strict quality control, and fast turnaround to produce components that meet tight tolerances and demanding industry standards.

Why choose our wholesale CNC precision parts?

If you buy in volume, you need a partner who understands repeatability, cost-efficiency, and traceable quality. At Runkey Parts we focus on:

  • Consistent dimensional accuracy for assemblies and mating parts.
  • Scalable production for small runs (prototypes & samples) up to large-volume batches.
  • Clear communication on pricing tiers, lead times, and tooling considerations.

Capabilities & processes

We handle a wide range of CNC processes so you get the exact finish and geometry your design requires:

  • CNC turning (2–8 axis) for shafts, bushings and cylindrical components.
  • CNC milling (3–5 axis) for complex pockets, slots, and prismatic parts.
  • Swiss-type machining for small-diameter, high-precision parts.
  • Secondary operations: drilling, tapping, reaming, broaching.
  • Finishes: anodizing, passivation, plating, black oxide, bead blasting, and custom coatings.

Materials we commonly machine

We routinely produce parts in:

  • Stainless steels (e.g., 304, 316) — corrosion resistance for medical and food equipment.
  • Aluminum alloys (e.g., 6061, 7075) — lightweight structural parts.
  • Brass & bronze — electrical and bearing applications.
  • Engineering plastics (POM, PTFE, Delrin) — low-friction and insulating components.
  • Specialty alloys on request (e.g., Inconel, titanium) for aerospace and high-temp use.

Typical tolerances & inspection

For most production runs we reliably hold tolerances down to ±0.01 mm (±0.0004") depending on material and geometry. Critical-dimension control and functional fit are validated through:

  • First Article Inspection (FAI)
  • Coordinate Measuring Machine (CMM) reports
  • In-process sampling and SPC (Statistical Process Control)
    If you need tighter tolerances or GD&T callouts, we’ll review drawings and recommend the best process and fixturing.

What buyers need to know — MOQ, lead times & pricing

  • Minimum Order Quantity (MOQ): flexible — small sample orders are accepted; wholesale pricing typically begins at higher-volume tiers (discussed during quoting).
  • Lead times: prototype/sample turns can be as fast as 3–7 business days; typical bulk orders range from 10–30 business days depending on complexity and finishing.
  • Pricing structure: volume-based discounts, tooling amortization for complex parts, and material-driven costs. Upload your drawing for a fast, transparent quote.

Industries we serve

We supply precision components across industries that demand accuracy and traceability:

  • Medical devices & diagnostics
  • Aerospace & defense
  • Automotive & EV systems
  • Industrial automation & robotics
  • Telecommunications & electronics
  • Consumer products & instrumentation

How we work with your drawings

Send us STEP, DWG, or PDF drawings — we’ll:

  1. Review manufacturability and suggest cost-saving design tweaks (fillets, tolerances, wall thickness).
  2. Provide DFM feedback and a written quote with lead time and MOQ options.
  3. Produce samples for approval and supply full production with inspection reports.

Quality & certifications

We operate with documented quality procedures and can support customer audits. Typical quality controls include material certificates, batch traceability, CMM inspection reports, and visual acceptance criteria. If you require specific certifications (ISO, AS9100 documentation), tell us when you request a quote and we’ll include available evidence.

Common buyer FAQs

Do you accept low-volume or prototype orders?

Yes — we support prototypes and small runs so you can validate fit and function before scaling.

Can you machine to my CAD file?

Absolutely — we accept STEP, IGES, and native CAD formats and will provide DFM feedback.

Ready to get a quote?

If you need wholesale CNC precision parts or want to work with a dependable CNC precision parts supplier, upload your drawing or send a parts list. We’ll return a clear quote with lead time, MOQ options, and suggested cost-saving adjustments.