CNC Machining Services
Precision parts,
on demand.
Production-grade CNC machining from prototype to ten thousand. Upload a CAD file — your part ships with first-piece inspection and direct access to the engineer running your job.
Veteran program leads
Programs run by engineers who have shipped real parts at production scale.
Instant quote, engineer-checked
Upload CAD for an instant price; an engineer reviews DFM before the job releases.
FAI on every order
Every order ships with a full first-article report checked against your CAD.
Direct engineer access
Email, call, or video — talk straight to the person running your job.
At a glance
- How parts are made
- US engineering front end (quoting, DFM review, program management, quality review) with a vetted ISO 9001 partner network in the US, Canada, Mexico and Asia; FABDIGIT INC. is the contracting party on every order
- Quoting
- Instant quote from CAD (STEP, SLDPRT, IGES, X_T; DXF for flat patterns) with an engineer DFM review on every quote
- Minimum order
- No minimum — single prototypes to 10,000+ parts
- Lead time
- From 2 business days for simple 3-axis parts; 5–7 business days standard; expedite on request
- Tolerance
- ±0.025 mm standard; ±0.005 mm on critical features with grinding or wire EDM
- Max part size
- 5,000 × 1,500 × 600 mm (3-axis); 500 × 500 × 500 mm (5-axis); turning to Ø 500 × 1,000 mm
- Materials
- Aluminum, steel, stainless, titanium, brass, copper, engineering plastics — 20+ stocked grades, 790 in the Material Explorer
- Certifications
- Production partners hold ISO 9001:2015 (verified at onboarding); AS9100 / IATF 16949 work placed only with partners certified to that standard; FABDIGIT INC. itself is not ISO-certified
- Quality documents
- A FabDigit engineer reviews DFM on every quote before it is released — not an automated flag list, and not only on request
- Ships to
- United States; international orders accepted (customer is importer of record, Terms §11.4)
Six processes. Every part you can imagine.
From a single-setup 5-axis run on a brake caliper to wire-EDM apertures in hardened tool steel — we pick the right machine for the job, not the other way around.
3-axis milling
The workhorse — prismatic geometry, pockets, threaded holes.
± 0.025 mm
5-axis simultaneous
Complex contours and undercuts machined in a single setup.
± 0.0125 mm
CNC turning
General-purpose lathe work for round parts up to Ø 250 mm.
± 0.02 mm
Swiss turning
Long thin shafts and fine threads. From 1 mm diameter up.
± 0.005 mm
Sinker EDM
Square inside corners and hardened-tool geometry.
Ra 0.4 µm
Wire EDM
Tight tolerances on hardened steel, apertures, and blanks.
± 0.005 mmThe full envelope.
Max part size
5,000 × 1,500 × 600 mm3-axis envelope. 5-axis up to 500 × 500 × 500 mm; turning up to Ø 500 × 1,000 mm.
Minimum feature
1 × 1 × 5 mmTypical milling minimum. EDM corner radius down to 0.03 mm; hole diameter from 0.3 mm.
Tolerance
± 0.025 mm standardOn machined features unless your drawing says otherwise. ± 0.005 mm on critical features with grinding or wire-EDM; precision grinding to ± 0.002 mm on contact surfaces.
Surface roughness
Ra 0.8–1.6 µmAs-machined finish. Down to Ra 0.2 µm with precision grinding or polishing.
Lead time
As fast as 2 business daysSimple 3-axis parts. Standard 5–7 days; expedite available across all sub-processes.
Inspection
First-article on every orderDimensional and CMM reports available on request. Material certifications (MTRs) on request.
Materials
790 quotable gradesAluminum, steel, stainless, titanium, brass, bronze, copper and engineering plastics, by grade and temper ? 150+ finishes and 30 heat treatments priced in the quote.
How tight do we hold?
The tolerance you mark on the drawing is the tolerance you get back. Below the ruler shows the three bands we machine into — anchored against things you can hold.
Critical
± 0.002 – ± 0.01 mm
Wire EDM, sinker EDM, precision grinding. For bearing fits, sealing surfaces, optical contact.
Typical
± 0.02 – ± 0.05 mm
Where most machined parts live. Achievable on 3-axis mill and turning without secondary operations.
General
± 0.1 mm and up
Brackets, fixtures, non-mating geometry. Faster cycle times, lower cost.
How smooth do we finish?
Ra is the other half of the drawing-block. Below: every process we machine into, with the Ra range we can actually hit and an honest texture preview for each grade. Tap any tile to open the full sample and see when to spec it.
Turning
Lathe — single-point cutting
Horizontal Milling
Horizontal spindle — slab + side cutter
Vertical Milling
3 / 4 / 5-axis — ball-end + flat
Grinding
Surface + cylindrical — abrasive wheel
VDI Texture
EDM mold-texture standard · VDI 3400
SPI Finish
Polish standard · SPI / SPE A1–D3
A curated showcase.
Our catalogue runs 790 grades deep.
The cards below are our most-requested grades — kept on the shelf for fast turnaround. The full catalogue is the Material Explorer: 790 alloys, plastics, composites and ceramics with datasheets. Request any other grade by name, spec, or supplier datasheet.
Need a grade not shown above? Browse the 790-grade Material Explorer, or name it, spec it, or send a supplier datasheet and we will source it. Material certifications and mill test reports (MTRs) included with every grade.
Finished to spec.
A showcase of our most-requested finishes — eight of 50+ supported across anodize, plating, paint, and thin-film coatings. All coordinated through our finishing partners so your parts ship complete in one box.
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Need a specific RAL/Pantone colour or a supplier-specified finish chemistry not pictured? Name it, spec it, or send a finish standard — our partner network covers the long tail of cosmetic and functional finishes.
Capabilities
615 grades priced instantly.
Every grade below has a datasheet — composition, mechanical and thermal properties, machinability, compatible finishes — and a price in the configurator. Families first, most-quoted grades in each. All 615 grades for CNC machining →
Steel274
- 1018The standard machining steel
- 1045High-strength shafting steel
- 4140Versatile alloy
- A36Cheapest structural steel
- 12L14Super-fast machining
Aluminum137
- 6061The go-to general purpose
- 7075Ultimate strength
- 5052Marine grade
- 2024High fatigue resistance
- 5083Tough marine alloy
Stainless Steel79
- 304Most common stainless steel
- 316LWeldable marine grade
- 303Easiest machining stainless
- 17-4 PHStandard aerospace PH
- 410Hardening general purpose
Copper Alloy35
- C11000Industrial standard pure copper
- C36000Fastest machining brass
- C26000Easy machining brass
- C51000Best spring-tempered bronze
- C17200Highest strength copper alloy
85 finishes, each with its datasheet.
Thickness, hardness, salt-spray life, the governing specification, the drawing call-out and which material families take it — one page per finish, and an A-vs-B comparison for the pairs engineers weigh against each other. All surface finishes →
Anodizing, conversion & passivation18
- Anodizing Type II$$
- Black Oxide$
- Chemical Conversion Coating$
- Electropolishing$$$
- Hard Anodizing Type III$$$
- Hard Anodizing Type III With PTFE$$$
Plating & metallizing17
- Copper Plating$$
- Decorative Nickel-Chrome Plating$$$
- Electroless Nickel Plating$$$
- Electrolytic Nickel Plating$$
- Gold Plating$$$$
- Hard Chrome Plating$$$$
Paint, powder & polymer coatings8
- Cerakote$$$
- Electrophoretic Coating$$
- Epoxy Coating$$$
- Powder Coating$$
- PTFE Dry-Film Coating$$$
- Wet Painting$$
PVD, CVD & thermal spray17
- Aluminum Chromium Nitride PVD$$$$
- Aluminum Titanium Nitride PVD$$$$
- Chromium Nitride PVD$$$$
- CVD Alumina$$$$
- CVD Titanium Carbonitride$$$$
- CVD Titanium Nitride$$$$
Design rules for CNC machining live in the engineering guides; the instant quote prices any grade-and-finish combination above on upload.
Beyond machining.
Bead Blasted
Uniform matte texture
Brushed
Linear grain, premium look
Mirror Polished
Optical-grade reflection
Tumbled
Soft, broken edges
Annealing
Internal stress relief
Quench & Temper
Hardness + toughness control
Carburizing
Surface hardening — case
Nitriding
Wear-resistant nitrogen case
CAD to door, in four steps.
The same engineer reviews your quote, supervises production, and signs off on the inspection report — so nothing gets lost in handoffs.
Upload your CAD
STEP, SLDPRT, IGES, X_T, or 3D PDF. Drop it on the page or email us.
Instant quote, then review
The quote engine prices the part on upload; an engineer reviews DFM and confirms before release.
We make it
First piece is measured against your CAD before the rest of the batch runs.
Door delivery
We ship to your address with an inspection report attached.
What is always included
- DFM review with every quote
- 100% first-article inspection
- Material certifications on request
- NDA before file upload — on request
- Production from 1 to 10,000+ parts
- U.S.-based engineering, global manufacturing
- Direct engineer access — email, call, or video
CAD to door, day by day.
A typical 50-piece prototype run on a 3-axis machined aluminium part. Real schedules vary by quantity, complexity, finishing, and material availability — but this is the shape of a standard programme.
Quote
Day 0 · same dayDFM review
Day 0 → 1Production
Day 1 → 6QC + report
Day 6 → 7Ship
Day 7 → 8Need parts faster? 3-day expedite is available on most jobs. For complex 5-axis programmes or speciality finishes (Cerakote, hardcoat anodise, plating) add 3–5 working days to the production phase.
Answers, on the record.
Engineers wrote these. If yours is not here, emailengineering@fabdigit.com — typical reply within 4 business hours.
STEP (.step / .stp), SOLIDWORKS (.sldprt), IGES (.igs / .iges), Parasolid (.x_t / .x_b), and 3D PDF for marketing-only review.
For sheet-metal-style flat patterns we also accept DXF — but for CNC work, please send the 3D solid model so we can verify wall thickness and tool access automatically.
Standard CNC parts are priced instantly on upload. Every quote then gets an engineer DFM review before the order releases; parts the engine cannot price automatically (very large envelopes, exotic materials, assemblies) come back from engineering within hours, in most cases the same business day.
Standard is 5–7 business days to shipment for stocked materials. Expedite runs from 2 business days on simple 3-axis parts and 3 business days on most milled and turned parts, at a surcharge shown in the quote. Heat treatment, plating and anodize add their own process days; the quote states the total.
Yes. Select the expedite option in the quote: from 2 business days for simple 3-axis parts in stocked aluminum, steel, stainless or plastics, 3 business days for most other geometries. Quick-turn parts get the same engineer DFM review, ± 0.025 mm standard tolerance and first-article inspection as standard orders — the surcharge buys machine time, not a different process. Parts needing heat treatment, plating or tight-tolerance grinding are quoted with those days added.
No. We quote single prototypes the same way we quote 10,000-piece production runs — the price-per-piece just changes.
Standard tolerance is ± 0.025 mm on machined features. We can hold ± 0.005 mm on critical features with grinding or wire-EDM as a secondary process. Just mark the callouts on your drawing and we will price the precision work in.
Yes. We ship the mill test report (MTR) or certificate of conformance from the raw stock supplier when requested. For ITAR or aerospace traceability we can route through bonded suppliers; mention it on the quote request and we will confirm before production starts.
We offer a mutual NDA before file upload, no questions asked. Email an NDA request to engineering@fabdigit.com or ask in the quote modal and the form will route through legal review first.
Yes — anodize + Type-III hardcoat, brushed + Cerakote, powder coat over black oxide. We coordinate the sequence with the finisher so you get one shipment with the full process documented on the inspection report.
100 to 10,000 pieces is our most common production range. Above 10,000 we route to a partner network and stay on as the engineering point of contact so the customer-facing experience does not change.
Every quote includes a free DFM review. The engineer flags wall-thickness, tool-access, and tolerance-stack-up issues before quoting, and suggests changes that reduce cost or improve manufacturability.
Upload a CAD file. Get a quote in hours.
No order minimums. No long sign-up flow. Just precision parts.