Micro CNC machining · RFQ matching
Micro CNC Machining for Precision Parts Under 10 mm
Send a STEP file once. We match your part with up to 3 shops that run Swiss-type lathes, 5-axis micro mills and the measurement your tolerances need, in the supplier region you choose. Reply within 24 business hours.
Typical micro machining capability
- Smallest feature
- 0.3 mm
- Drilled holes from
- ⌀0.2 mm
- Best linear tolerance
- ±0.005 mm
- Surface finish
- Ra 0.8 μm best, 1.6 μm typical
- MOQ
- 1 piece (prototype)
- First reply
- Within 24 business hours
Typical values at micro machining shops. The real limit depends on your drawing, the material and the matched shop.
Why buyers send micro machining work here
It comes down to the match: shops that fit your part, from the first quote.
Matched by specialization
Your RFQ goes to up to 3 shops that make micro parts every week, picked for your material, feature size and tolerance. Not a general directory.
Professional suppliers
Shops in the network quote to your drawing, communicate clearly and keep you updated while your parts are made.
You deal with the shop
Quotes, terms and delivery are agreed between you and the shop. Free for buyers.
Capabilities
Why Micro Parts Need a Specialist Shop
Micro machining is unforgiving. Tool deflection, thermal drift and chip evacuation become the dominant failure modes once features drop below 1 mm. Most general CNC shops that advertise "precision" avoid the work or quote it without the right machines. We match your part only with shops that are built around it.
5-axis simultaneous and Swiss-type
5-axis machines handle complex micro geometries in a single setup, which avoids the re-fixturing errors that compound on parts under 10 mm. Sliding-head Swiss-type lathes support slender turned parts right next to the tool. Critical for medical implants, optical mounts and watch components.
Tight tolerance, measured
Typical capability: linear ±0.005 mm, bore class H6, IT5 grade, GD&T including flatness 0.005 mm and runout 0.01 mm, held in production and not only on first article parts. Matched shops measure with CMM or optical systems suited to small features.
Material range
From soft brass to titanium Grade 5, hardened tool steel D2 and H13 and engineering plastics PEEK, POM and PTFE. Each material needs its own micro tooling and speeds, so we match on material as well as size.
Swiss-type turning, micro milling and micro drilling explained
Process
From Drawing to Delivery
A standard four-step path keeps lead time predictable and quality auditable. You deal with the shop directly from step three.
Drawing review
We review your STEP, PDF or DWG and flag features that risk failing, like holes below ⌀0.2 mm or walls under 0.15 mm, before anything goes out.
Matching
We reply within 24 business hours with up to 3 shops that fit the material, size, tolerance, quantity and region you chose.
Direct quotes
Shops quote you directly with material, lead time and pricing breakdown. EXW from the shop or DDP on request.
Production and QC
Prototypes first. FAI report, CMM verification, surface inspection and material certs are agreed with the shop you choose.
Specifications
Materials and Tolerance for Micro Parts
Material selection drives the tolerance ceiling on micro features. Below is what micro machining shops typically stock and routinely deliver.
| Material | Grades |
|---|---|
| Stainless steel | 303, 304, 316, 316L |
| Titanium | Grade 2, Grade 5 (Ti-6Al-4V) |
| Aluminum | 6061-T6, 7075-T6 |
| Brass and copper | C36000, C11000 |
| Tool steel | D2, H13, SKD11 |
| Engineering plastics | PEEK, POM, PTFE |
| Tolerance | Typical capability |
|---|---|
| Linear, best | ±0.005 mm |
| Linear, general | ±0.01 mm |
| Bore / shaft fit | H6 / h5 |
| Angular | ±10 arc-min |
| Flatness | 0.005 to 0.05 mm |
| Runout | 0.01 mm |
| Surface roughness | Ra 0.8 μm best, 1.6 μm typical |
Industries
Where Micro Parts Ship
Most micro machining work supports four industries where part size, tolerance and traceability are not negotiable. Each carries its own documentation requirements, and we tell matched shops about them up front.
Medical devices
Surgical instrument tips, endoscopic components, dental abutments, orthopedic micro-screws. Material certs and FAI are standard requests. SS 316L and Ti Grade 5 dominate.
Semiconductor
Chamber components, wafer handling pins, RF housings. Cleanroom-compatible packaging on request. Aluminum 7075 and titanium are most common.
Optics and photonics
Lens mounts, fiber alignment housings, laser cavity components. Tight concentricity and runout, so single-setup 5-axis or Swiss-type work is preferred.
Watches and instruments
Watch components, sensor housings, connector pins and small shafts for precision instruments. Brass, stainless and hardened steel.
Guides
Latest Micro Machining Guides
- Process
Handling, Cleaning and Packaging Micro Parts Without Damage
How to keep micro parts undamaged from machine to customer: handling rules, ultrasonic cleaning, drying, tray and gel packaging, counting and what to put in the RFQ.
- Process
Deburring Micro Parts: Electrochemical, Abrasive and Thermal Methods Compared
How burrs are removed from micro parts: tumbling, abrasive flow, electrochemical, thermal energy and electropolishing, with typical burr sizes, edge radii and limits.
- Process
Centerless Grinding of Micro Pins and Shafts: What Tolerances to Expect
How centerless grinding makes micro pins and shafts: through-feed vs in-feed, typical diameter tolerance, roundness, finish, length limits and drawing notes.
What is the smallest part a matched shop can machine?
Typical capability at micro machining shops: features down to 0.3 mm and overall part envelopes from 1 mm. Hole drilling starts at ⌀0.2 mm and wall thickness at 0.15 mm, depending on material. Send the drawing and feasibility is confirmed before any quote.
What tolerance can be held on micro parts?
Typical best linear tolerance is ±0.005 mm and general tolerance ±0.01 mm. Bore class H6, shaft class h5, IT5 grade. Surface finish Ra 0.8 μm best and 1.6 μm typical. These are typical values, not a promise for every part. Tighter specs are possible after DFM review with the matched shop.
Which materials are machined for micro parts?
Stainless 303, 304 and 316L, titanium Grade 2 and Grade 5, brass, copper, aluminum 6061 and 7075, tool steel D2, H13 and SKD11, and engineering plastics PEEK, POM and PTFE. Mill certs can be requested with the order.
Do you accept low-volume prototype orders?
Yes. Prototype runs of 1 to 10 pieces are a normal RFQ here, as are small batches of 10 to 500 and medium runs of 500 to 5,000. We only match shops that take your quantity.
How long does a quote take?
We reply within 24 business hours after receiving your drawing (STEP, PDF or DWG) with the matched shops, or tell you plainly if we cannot find a fit. Matched shops then quote you directly. Complex parts that need DFM feedback may take up to 48 hours more.
Are you a machine shop?
No. Micropartz is a matching service. We do not own machines. We review your RFQ and pass it to up to 3 shops that run Swiss-type lathes, micro mills and the measurement your tolerances need. You deal with the shop directly and we take no commission on the order.
What does it cost me as a buyer?
Nothing. Sending an RFQ and getting matched is free for buyers.
Can I get an NDA before sharing drawings?
Yes. Tick the NDA box on the RFQ form. Shops then see only a short preview without your name or files until an NDA is signed.
RFQ
Send a Drawing. Get Matched Within 24 Business Hours.
STEP, PDF or DWG. We respond with feasibility and up to 3 matched shops, who quote you directly with lead time and EXW pricing.
Need more fields, an NDA or a supplier region? Use the full RFQ form.
For shops
Do You Run a Micro CNC or Swiss-Type Shop?
We send qualified micro machining RFQs from buyers in the US, Europe, Japan, Korea and Singapore to shops that have the machines and the measurement to deliver. Registration is free.
- SpecializedSeveral years in precision or micro CNC work
- Export readyExperience shipping to the US, EU or Japan
- CertifiedQuality certificates such as ISO 9001, ISO 13485 a plus for medical
- Equipped5-axis or Swiss-type capability and CMM inspection in-house
- Contact