High-Precision Swiss Turning, Quoted in Hours
We deliver complex, small-diameter parts with micron-level tolerances. Our streamlined RFQ process provides a comprehensive engineering review, moving your project from design to production faster.
Industries Served by Swiss Turning
We support industries where traceability, finish requirements, repeatability, and documentation needs matter as much as dimensions, with optimized cost-per-unit for 1k to 100k+ volume production when the part design is suited to Swiss turning.
Medical & Healthcare
Avoid traceability gaps or documentation delays for implantable/diagnostic devices, with consistent precision across medium-to-high volume runs.
Bone screws, dental implants, surgical probes, diagnostic components.
Aerospace & Defense
Eliminate surprises in batch records, material traceability, or quality consistency for programs where documentation and repeatability are non-negotiable.
Connectors, sensor housings, high-pressure fittings, guidance components.
Electronics & Semiconductor
Prevent rework from inconsistent pitch, plating, or micro-feature precision for telecom and semiconductor equipment components.
Connector pins, RF contacts, fiber-optic ferrules, test probes.
Industrial Automation & Robotics
No premature wear or dimensional drift for motion components designed to survive long duty cycles in automated systems.
Miniature shafts, valve spools, actuator pins, gripper fingers.
From Print to Part: Examples of Our Swiss-Turned Parts
A few examples of the parts we manufacture for critical industries.
Medical Bone Screw
A complex bone screw with precision thread geometry and a surgical drive feature.
RF Coaxial Connector
A miniature connector built for internal precision and signal integrity.
Hydraulic Valve Spool
Swiss turning plus secondary grinding for extreme dimensional accuracy and long service life.
Core Swiss Turning Capabilities
Swiss turning is especially effective for small-diameter parts, slender geometries, and components that benefit from stable support close to the cut.
Cost-Effective Volume Production
Optimized for 1k – 100k+ piece volumes, Swiss turning delivers exceptional cost-per-unit for miniature shafts, pins, sleeves, and rotational components with guide-bushing support.
Live-Tool and Consolidated Operations
Swiss lathes with live tooling produce cross-holes, axial slots, flats, and secondary features in one cycle, reducing handling and optimizing throughput for medium to high volume runs.
Sub-Spindle for Complete Parts
Sub-spindle transfer enables complete part production in one setup, ideal for medium to high volume manufacturing where consistency and efficiency are critical.
Repeatable Precision at Scale
Tight dimensions, improved roundness, and enhanced finish are maintained consistently across thousands of pieces, with feature-specific quality control for medium to high volume production.
Swiss Turning Parameters and Review Scope
| Parameter | Review scope |
|---|---|
| Part type | Small-diameter, slender rotational parts best suited to Swiss turning. |
| Tolerance approach | Critical diametrical or linear features can typically be held to ±0.005 mm (±0.0002 in), subject to part geometry, material, and inspection feasibility. |
| Secondary features | Cross-holes, axial slots, flats, and back-end features can be produced via live tooling and sub-spindle operations, depending on part geometry. |
| Length-to-diameter ratio | Higher ratios than conventional CNC turning may be possible due to guide-bushing support. |
| Inspection scope | Based on drawing-defined characteristics, an agreed inspection plan (sampling and methods), and the documentation requested at RFQ. |
| Documentation | MTR, CoC, dimensional reports, and traceability requirements should be specified during RFQ—no documentation is assumed by default. |
Materials & Surface Treatment (RFQ Definition)
To quote accurately and control final dimensions, specify material grade and condition, required documentation scope, and whether critical dimensions are evaluated before or after finishing.
Common Machinable Materials
- Aluminum: 6061‑T6, 2024, 7075‑T6
- Stainless steel: 303, 304, 316
- Brass & copper: free‑machining brass, pure copper
- Carbon & alloy steel (per part geometry and end‑use)
- Engineering plastics: POM, Nylon, PTFE, and other machinable polymers
Managed Surface Treatment Options
- Anodizing (clear/color) and hard anodizing when specified
- Stainless passivation
- Zinc plating, electroless nickel, black oxide, and other subcontract finishes
- Bead blasting, tumbling, and cosmetic surface preparation
- Laser marking when specified on the drawing
Finish-Stage Dimension Control
For coated parts, define whether acceptance is pre‑finish or post‑finish for critical diameters, bores, and threads. In the RFQ/drawing, include finish specification, masking areas, and any thickness-related requirements that affect final fit.
Quality Verification and Metrology
Each order follows a defined inspection sequence based on critical-to-quality features, material requirements, and the inspection/documentation scope confirmed during RFQ.
Incoming Material Verification
Material is verified against the ordered grade and form, with required supplier documentation checked before the job is released to production.
First-Piece / Setup Approval
For new parts or revisions, first-piece checks focus on critical features to confirm the setup and measurement method before production continues.
In-Process Inspection
In-process checks are applied to critical diameters, threads, runout, groove widths, and concentricity as defined by the inspection plan.
Final Inspection and Measurement Report
Final inspection is performed to drawing-defined acceptance criteria using calibrated instruments and agreed measurement methods, with results documented as required.
How We Review RFQ Fit
We review each request for the details that affect quoting, feasibility, and repeat production readiness.
Prototype to Repeat Production
We review whether a part is better suited to prototype validation, repeat production, or a phased transition between the two, based on material form, tooling method, inspection scope, batch quantity, and release planning.
Feature-Specific Tolerance Review
We review critical dimensions on the features that matter most, rather than treating every dimension as a default requirement across the entire part.
Engineering-Led RFQ Review
We review technical RFQs against drawing revision, material grade, quantity, geometry risk, documentation scope, and requested finishing conditions before quotation is released.
Questions Buyers Ask Before Sending an RFQ
How are tolerances reviewed for CNC turned parts?
Production is controlled to your drawing requirements and agreed inspection scope. Tight tolerances on selected diameters or other critical features are reviewed case by case according to material, geometry, length-to-diameter ratio, workholding, finishing impact, and inspection method.
How do we know whether a part is better suited to standard CNC turning or Swiss turning?
Process selection depends on part diameter, length-to-diameter ratio, feature position, thread and groove requirements, and whether radial, axial, or off-axis features need to be completed in fewer setups. Send your 2D and 3D files together so the most suitable route can be reviewed before quotation.
Can prototype validation start first and then move into repeat production later?
Yes. Many turning programs begin with prototype validation, pilot engineering, or first-piece review before moving into scheduled repeat production. If you provide sample quantity, target batch tier, and expected annual demand early, quotation and production planning can be aligned more realistically from the beginning.
How do you review tolerance risk on shafts, bushings, and other rotational parts?
Tolerance review is performed feature by feature, not as a blanket assumption applied to the entire part. Material behavior, support method, workholding stability, surface condition, and inspection method all affect what can be controlled reliably on selected critical features.
Can material certificates, CoC, or inspection reports be included?
Yes, but they are not issued by default unless they are defined in the quoted order scope. Requirements such as MTR, MTC, CoC, dimensional reports, lot traceability, or heat traceability should be identified during RFQ review so sourcing, inspection, and documentation expectations can be quoted correctly.
What helps you quote faster with fewer follow-up questions?
The most efficient RFQs usually include a 3D model, controlled 2D drawing, material grade, quantity, finish requirement, critical features, and required documentation scope in one package. When those inputs are complete, engineering review is more direct and quotation usually requires fewer clarification rounds.
Send Your RFQ Package
Include the technical details below when submitting your inquiry so we can review feasibility and quote accurately.
FIWOK METALWORKS
Build-to-print CNC manufacturing for rotational and precision engineered parts.
Email RFQs to sales@fiwokmetalworks.com. For parts involving coating thickness, post-finish fit-critical surfaces, or traceability requirements, the applicable dimensional stage should be defined before quotation release.
- 3D model files such as STEP or IGS together with controlled 2D PDF drawings
- Critical diameters, runout, concentricity targets, thread callouts, and key inspection features
- Material grade, stock condition, sourcing limits, and any traceability requirements
- Prototype quantity, batch tier, annual demand, or repeat production forecast
- Finish, coating, passivation, masking, marking, or post-treatment notes
- Documentation scope such as MTR, CoC, FAIR, or defined dimensional reports