# Swiss-Turned Miniature Parts — CNC Machined to Drawing

> Sinbo Precision (sinbo-machining.com) machines 30 Swiss micro parts to customer drawing in Dongguan, China — quotation within 48 hours, first prototypes in 7–15 days, from 1 piece. IATF 16949 & ISO 9001:2015 certified.

Swiss-type lathes with guide bushings hold ±0.005 mm on parts down to Ø0.3 mm, in brass, 303/316 stainless, beryllium copper C17200 and Kovar. Watch-grade finishing, micro-milling for flats and slots, and single-part traceability make this the house speciality for instrument, watch, optical and test-probe builders.

## 30 Swiss-Turned Miniature Parts We Machine

- **Micro shaft, Ø0.3–8 mm** — ground, runout ≤0.002 mm.
- **Micro pin** — length ±0.02 mm, tip radii controlled.
- **Micro screw M0.6–M2** — Swiss-turned, slotted/Torx, polished head option.
- **Micro nut** — brass/303, tapped M0.6 up.
- **Micro standoff** — Ø1–3 mm, thread + shoulder.
- **Watch crown tube** — brass, ID/OD concentric.
- **Instrument stem** — ground, end-profile milled.
- **Dental instrument ferrule** — 303 stainless, cleanroom-washed option.
- **Optical micro sleeve** — ID ground, black-finish option.
- **Guide bushing, hardened** — carbide-bore options, ID ±0.002 mm.
- **Micro nozzle, Ø0.05 orifice** — orifice drilled and deburred, flow-verified.
- **Micro pinion** — milled teeth, module 0.1+.
- **Test probe plunger** — BeCu, heat-treated, plated.
- **Test socket pin** — brass/BeCu, gold-plated.
- **Micro hinge** — assembled pin + barrel set.
- **Micro axle** — ground both ends, wheel press-fit zone.
- **Micro slotted screw, polished head** — watch-grade cosmetic finish.
- **Buckle axle** — ground, length ±0.02 mm.
- **Micro valve seat** — PEEK/316, lapped.
- **Fiber ferrule** — titanium/SS, bore ±0.001 mm option.
- **Micro spacer** — ground thickness ±0.005 mm.
- **Vibration weight** — eccentric micro-milled.
- **Micro terminal** — cold-headed or turned, plated.
- **Micro collet** — slotted + ground, grip runout ≤0.005 mm.
- **Stylus holder** — 303 stainless, ruby-seat bore.
- **Micro tool blank** — ground shank, end-prep ready.
- **Miniature valve spool** — ground, ±0.002 mm.
- **Micro solenoid core** — magnetic stainless, plated.
- **Micro lead screw** — rolled thread, ±0.01 mm lead error.
- **Camera module barrel** — brass, black-anodized ID option.

## Typical Materials & Tolerances

| Parameter | Value |
|---|---|
| Metals | Stainless 303/304/316/316L/416/17-4 PH · brass CW617N, DZR CW602N, CuZn39Pb3 · aluminum 6061/7075/6082 · steel 1018/1045/42CrMo4/16MnCr5 |
| Plastics | PEEK · PTFE · POM (Delrin) · nylon · PVDF · polycarbonate |
| Tolerances | ±0.005 mm on critical diameters · DIN ISO 2768-mK general · ground features ±0.002 mm |
| Surface | Ra 0.8 standard machined finish · Ra 0.4 / Ra 0.2 ground · Ra 0.1 lapped |
| Finishes | nickel / zinc / hard chrome / black oxide / anodizing / PVD via audited partners |
| Documentation | EN 10204 3.1 material certificates · FAI · PPAP Level 3 (automotive) · full dimensional report |
| Order range | 1-piece prototypes · batch 100–20,000+ · 2.6 million parts/month capacity |
| Lead time | quotation within 48 hours · first prototypes 7–15 days |

## Related Pages

- [Precision robot parts](https://www.sinbo-machining.com/case/precision-robot-parts/)
- [Semiconductor precision parts](https://www.sinbo-machining.com/case/sg-semicon-precision/)
- [Korea semiconductor parts](https://www.sinbo-machining.com/case/kr-semicon-parts/)

**Request a quote:** send your drawing to leo.pan@sinbo-machining.com — quotation within 48 hours, no minimum order for prototypes.

Last updated: 2026-09-27