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How to Get an Online CNC Machining Quote.
Three Steps.
Upload. Configure. Receive. No back-and-forth emails. No waiting days for a quote.
Upload Your Design
Upload STEP, IGES, or SolidWorks files. Our AI reads your geometry, flags thin walls, deep pockets, unreachable features, and small internal radii, then prices the part in seconds.
Configure & Order
Choose your material grade, surface finish (Ra 0.4 to 3.2 µm), tolerance class (ISO 2768-mK or tighter), quantity, and lead time. Free DFM review included. Approve and pay online.
We Machine & Ship
Cut in our Union City, CA shop. CMM inspected to your drawing. Ships with mill certs, dimensional inspection report, and Certificate of Conformance. AS9102 FAI on request.
CNC Milling, Turning, Prototyping & Production — All Under One Roof.
Every CNC machining service you need from a single USA shop. No brokered work. No surprise lead times.
CNC Milling
3, 4, and 5-axis. Pockets, contours, multi-face setups. ±0.0002" achievable on critical features. Aluminum 6061 to Ti-6Al-4V.
3, 4 & 5-axisCNC Turning
Live tooling for one-setup turn-mill. Shafts, bushings, fittings, threaded components. Concentricity to 0.0005".
Live toolingRapid Prototyping
Single-piece prototypes in 3 business days. Same machinists run your prototype and your production — the part you approve is the part that ships at scale.
As fast as 3 daysProduction Runs
10 to 5,000+ parts. First article approval, in-process inspection, dedicated tooling between runs for consistency.
10 to 5,000+ partsSurface Finishing
Type II and Type III anodize, bead blast, powder coat, electroless nickel, zinc and chrome plating, passivation per ASTM A967.
Type II & III anodizeQuality & Inspection
CMM inspection on every order. Drawings interpreted per ASME Y14.5 / ISO 1101. AS9102 FAI on request. Mill certs (EN 10204 3.1) and CoC included.
100% inspectedCNC Machining Materials.
50+ Metals and Plastics in Stock.
Aluminum 6061 and 7075. Stainless 304, 316, and 17-4 PH. Ti-6Al-4V titanium. PEEK, Delrin, and Nylon 6/6. If you don't see yours, ask — we probably machine it.
Aluminum
- 6061-T6 40 ksi yield, machinability ~190
- 7075-T6 73 ksi yield, aerospace structural
- 2024-T3 Fatigue resistant, airframe skins
- 5052 Marine-grade, formable
Steel
- 1018 Low carbon, weldable
- 4140 Pre-hard 28–32 HRC, high strength
- 4340 Quenched & tempered, ultra-high strength
- A36 36 ksi yield, structural
Stainless Steel
- 303 Free-machining, sulfur-bearing
- 304 Austenitic, weldable, general purpose
- 316 Mo-bearing, marine and chemical grade
- 17-4 PH H900, ~190 ksi UTS
Titanium
- Grade 2 CP titanium, weldable, biocompatible
- Ti-6Al-4V (Grade 5) 120 ksi yield, aerospace and medical
Brass & Copper
- C360 Brass 100% machinability rating
- C110 Copper ~100% IACS conductivity
- C101 Copper Oxygen-free, ~101% IACS
Engineering Plastics
- Delrin (Acetal) Low friction, dimensionally stable
- PEEK 250°C service temp, chemical resistant
- Nylon 6/6 Wear resistant, ~12 ksi tensile
- UHMW Impact resistant, low friction
- Polycarbonate Transparent, ~9 ksi tensile
- PTFE (Teflon) 260°C, chemically inert
Don't see your material? We probably machine it. Ask us.
Why Engineers Choose RivCut
Over the Big Platforms
We built RivCut because engineers deserve better than brokered parts and black-box pricing.
100% In-House, USA Made
Every part machined in our Union City, CA shop. Not brokered to unknown suppliers. Full traceability from quote to delivery.
Talk to Real Engineers
No call centers. Your questions go directly to the machinists and engineers who make your parts.
Geometry-Based Instant Pricing
Our quote engine reads your CAD geometry to estimate cycle time, material removal, tool changes, and setups — not just bounding box. Pricing reflects the actual job, not a markup over a guess.
Free DFM on Every Order
Real engineers check wall thickness, internal corner radii, tool reach, hole depth-to-diameter ratios, and tolerance stack before cutting. Issues flagged before chips fly.
One Part to 5,000-Piece Runs
Single prototypes through bridge production. Same machinists, same tooling, same QA from prototype to scale-up. The part you approve at qty 1 is the part that ships at qty 5,000.
On-Time, Every Time
98% on-time delivery. We quote realistic timelines and we hit them.
Industries We Serve.
Aerospace, Defense, Medical & More.
Aerospace CNC machining, medical device components, defense parts, robotics, hardware startups, and industrial OEMs. Engineers choose RivCut when speed and precision both matter.
Aerospace
Flight-critical brackets, housings, and structural parts. Full traceability and documentation.
Defense
Mil-spec components with full traceability. Pursuing ITAR registration. Made in USA.
Medical Devices
Surgical instruments and implant components. Tight tolerances, biocompatible materials.
Automotive
Performance and aftermarket parts. Prototypes to production runs on your schedule.
Robotics & Automation
Custom brackets, housings, and end effectors. Fast iteration for fast-moving teams.
Hardware Startups
Prototype-to-production partner. No minimums. Scale when you are ready.
Semiconductor
Wafer handling and chamber components. Ultra-clean, ultra-precise.
Industrial Equipment
OEM replacement and custom components. Order what you need, when you need it.
Consumer Electronics
Enclosures, heat sinks, and structural frames. Production-quality finish on every part.
CNC Machining Services Across the USA
A California CNC shop with national reach. Cut in Union City, shipped to all 50 states.
CNC Machining Services USA
Every part is cut in our USA shop. Never brokered. Never sent overseas. You get full traceability from quote to delivery, all from one place. Engineers who care about IP, lead time, and quality choose USA-made over offshore every time.
CNC Machining California
RivCut is a California CNC machine shop in Union City, in the heart of the Bay Area. We work with Bay Area engineering teams in San Jose, Oakland, San Francisco, Fremont, and Hayward. Local pickup is available by appointment.
Looking for a CNC Shop Near Me?
If you are searching for a CNC shop near you, RivCut is the closest you can get to a local shop without losing online quoting. You get the speed of a digital platform with the accountability of a real machine shop you can call, visit, or audit.
Rapid CNC Prototyping
Rapid CNC prototyping in as few as 3 business days. Single-piece prototypes welcome. Most prototypes in aluminum 6061 or 7075 ship in 3 to 5 days. Need it faster? Tell us at quote time and we will work with you.
Low Volume CNC Manufacturing
Low volume CNC manufacturing is what we do best. Bridge runs from 10 to 5,000+ parts. No minimum order. Same machinists run your prototype and your production, so the part you approved is the part that ships at scale.
Aerospace CNC Machining
Aerospace CNC machining in 7075-T6, 6061-T6, 2024-T3, Ti-6Al-4V, and 17-4 PH stainless. Tolerances to ±0.0002 inches. CMM inspection and full mill cert traceability on every order. Pursuing AS9100D and ITAR registration.
Precision Machining Services
Standard tolerance is ±0.005 inches. Precision tolerance is ±0.001 inches. Critical features hold to ±0.0002 inches. Every part is CMM inspected before it ships. Full dimensional report included on request.
Custom CNC Parts, On Demand
Custom CNC parts in 50+ materials. From a single prototype bracket to a 5,000-piece production run. The same online quote tool, the same shop, the same machinists, every time. No quote forms. No phone tag.
What Our Customers
Are Saying
Every project matters. Here's what engineers and buyers say about working with RivCut.
We went through two shops before finding RivCut. Night and day difference. Parts come in right. Communication is clear. They held ±0.002" on a titanium bracket that two other shops couldn't get right.
Aerospace PartsThey caught a tolerance issue in our drawing before production started. That saved us a full revision cycle and three weeks of delays. You don't find that kind of attention to detail at most shops.
Medical DeviceWe needed fast turnaround on 5-axis parts for a new enclosure. RivCut delivered in 6 days. Quality was excellent. These guys move fast without cutting corners.
PrototypingRivCut vs CNC Marketplaces vs Local Machine Shops
Marketplaces are fast but route your job to the lowest bidder. Local shops are trustworthy but slow on quotes and often won't take small jobs. RivCut combines the speed of online quoting with the accountability of a real, in-house USA shop.
| What You Get | RivCut Best | CNC Marketplace | Local Machine Shop |
|---|---|---|---|
| Who cuts the part | Our machinists in Union City, CA | Unknown 3rd party shop | Local machinist, varies by shop |
| Country of origin | 100% USA, never outsourced | Often shipped overseas | USA, local only |
| Instant online quote | Yes — AI-priced in seconds | Yes | No — email or phone quote |
| Talk to the machinist | Yes, direct line | No, support agent only | Yes, in person |
| Free DFM review | Yes, on every order | Sometimes, paid add-on | Sometimes, informal |
| Tightest tolerance | ±0.0002 inches | ±0.005 inches typical | Varies by shop |
| Fastest lead time | 3 business days | 5–10 business days | 2–4 weeks typical |
| Minimum order | None — one part is fine | Often 5+ pieces | Often $500+ minimum |
| CMM inspection | Every order | Paid upgrade | Sometimes, manual only |
The DFM Checklist Engineers Use Before Sending CAD to a CNC Shop
14 checks for wall thickness, internal radii, tool reach, hole depth-to-diameter ratios, and tolerance stack. Catch issues before they cost you a revision cycle.
- ✓ 14-point pre-flight checklist
- ✓ Aluminum, steel & titanium-specific rules
- ✓ Printable PDF, no signup wall
Common Questions About
On-Demand CNC Machining
Upload Your CAD File.
Get Instant Pricing.
Prototypes in 3 days. Production runs on your schedule. 100% Made in USA.
No minimums · Free DFM review · Never brokered · Ships anywhere in the US
Engineering Resources & Guides
Free tools, charts, and guides for engineers and procurement teams