CNC machining cost is the question every buyer asks first, and the honest answer is that a machined part is priced from five stacked cost drivers, not a single number. A small aluminum turned pin can land near $8 to $20 each in volume, while a tight-tolerance stainless housing with full inspection can run $300 or more per piece. This guide breaks down exactly what you pay for, with realistic dollar ranges, so you can read a quote and know where the money goes.
The 5 cost drivers behind every CNC machining quote
Every reputable shop builds a price from the same components. Understanding how much CNC machining costs means understanding each line.
- Setup and programming. One-time cost to write the CAM program, dial in workholding, and prove out the first part. Amortized across the run.
- Material. Bar stock or plate plus scrap and drop, marked up to cover procurement and DFARS-compliant sourcing.
- Machine time. The spindle-hour rate multiplied by cycle time per part.
- Finishing. Deburr, tumble, anodize, plate, passivate, or bead blast.
- Inspection. In-process checks, CMM verification, and first article inspection with documentation.
Typical shop hourly rates in 2026
Spindle-hour rates vary by machine class and region. These are typical illustrative ranges for a U.S. shop, not binding quotes.
| Process | Typical hourly rate | Common use |
|---|---|---|
| CNC turning (2-axis lathe) | $60 to $95 / hr | Shafts, pins, bushings, fittings |
| CNC milling (3-axis) | $75 to $110 / hr | Brackets, plates, housings |
| Horizontal machining center | $95 to $140 / hr | High-volume prismatic parts |
| Swiss / multi-axis turning | $90 to $150 / hr | Small precision parts, medical, connectors |
| CMM inspection | $85 to $130 / hr | First article, dimensional reports |
A sample cost breakdown for a real part
Take a 6061-T6 aluminum housing, roughly 3 in x 2 in x 1.5 in, with a few 0.001 in bore tolerances and a Ra 32 uin finish on sealing faces, run at 250 pieces. Here is how the CNC machining cost typically stacks per part.
| Cost driver | Per-part range | Notes |
|---|---|---|
| Setup and programming (amortized) | $3 to $8 | $500 to $1,200 spread over 250 pcs |
| Material (6061 billet + drop) | $4 to $9 | Includes scrap and cutoff |
| Machine time (milling) | $12 to $22 | 8 to 12 min cycle at HMC rate |
| Finishing (deburr + clear anodize) | $3 to $7 | Type II per MIL-A-8625 |
| Inspection (in-process + sampling) | $2 to $5 | CMM first article billed separately |
| Typical total per part | $24 to $51 | 250-piece run |
Why the same part costs more at quantity 10
At low volume, the fixed setup cost dominates. A one-off prototype of that same housing can cost $180 to $450 because the $500 to $1,200 setup is carried by a single part. This is why unit price drops sharply from qty 1 to qty 25, then flattens. If you can batch, batch. See our CNC milling capabilities for how we schedule volume runs.
How each process changes the price
CNC turning cost
Turned parts are usually the cheapest per feature because bar-fed lathes run fast and load automatically. A simple 303 stainless bushing held to +/-.002 in can run $6 to $18 in quantity. Add live tooling for cross-holes and flats and expect a 20 to 40 percent bump. Our CNC turning cells run 10 Mazak and Doosan lathes for exactly this work.
Swiss machining cost
Swiss-type lathes shine on small diameter parts under 32 mm with tight +/-.0005 in tolerances and high length-to-diameter ratios. The hourly rate is higher, but cycle times on tiny parts are short and unattended, so per-part Swiss machining cost for connector pins and medical components often lands $2 to $15 at volume. Explore Swiss machining for details.
Milling cost
Milling costs scale with the number of setups and the amount of material removed. A part needing three setups costs roughly 3x the setup line of a single-setup part. Deep pockets, thin walls under 0.040 in, and tall bosses all add time.
Inspection and documentation costs
For aerospace, defense, and regulated work, inspection is a real line item, not an afterthought. Budget for these where your print or PO requires them.
- First article inspection (FAI): $150 to $600 per part number, more for AS9102 forms.
- CMM dimensional report: $85 to $130 per hour of programming and measurement.
- Material certifications: usually included, mill test reports pulled per lot.
- Certificate of conformance: typically no charge, standard on every shipment.
Our in-house Brown & Sharpe CMM keeps these costs contained because measurement stays under one roof instead of going to an outside lab. We run an ISO 9001-aligned quality system and provide DFARS-compliant material with mill certs on request.
Fast ways to get an accurate number
The most reliable way to learn how much your CNC machining will cost is to send a model and a print. Ranges here are typical illustrative estimates, and your real price depends on tolerances, quantity, material, and finish. Upload your files through our instant quote and get a firm number tied to your actual part.