CNC Boring Beryllium Copper from VT machining delivers precision Beryllium Copper parts produced to your exact drawing. Boring enlarges and finishes existing holes to precise diameter, roundness and surface finish, and we tune every parameter to the behaviour of Beryllium Copper, which is high strength with good conductivity and fatigue life.
Starting Parameters for CNC Boring Beryllium Copper
| Cutting speed (carbide) | 70-135 m/min |
|---|---|
| Feed | 0.056-0.154 mm/rev |
| Spindle speed, Ø30 mm bore | 740-1430 rpm |
| Insert / tool class | ISO H — CBN or fine-grain carbide |
| Coolant | Flood coolant (required to control beryllium-bearing dust) |
Shown for C17200 Beryllium Copper, the most common Beryllium Copper grade we see for CNC Boring. Starting values for C17200 Beryllium Copper, Solution annealed (TB00) or aged (TH04); optimised on the first article.

CNC Boring Capability for Beryllium Copper
- Bore tolerance to IT6
- Roundness within 0.005 mm
- Fine boring heads
- Large-diameter capability
Beryllium Copper material properties, finishing options and grade notes are on our CNC Turning Beryllium Copper page.
How CNC Boring Beryllium Copper Works
The Beryllium Copper bar or billet rotates in the spindle while single-point tools shape outer diameters, bores, faces, grooves and threads. Constant surface speed control keeps cutting conditions stable from large to small diameters.
Every job begins from your CAD model or 2D drawing. Fixturing and tool paths are planned so the most critical dimensions are produced in the most rigid, repeatable setup. Critical dimensions are checked on the first part and monitored through the run.
Achievable Tolerances for CNC Boring Beryllium Copper
| Feature | Standard | Precision |
|---|---|---|
| Outside diameter | ±0.05 mm | ±0.005 mm |
| Bore diameter | H9 | H6 |
| Length / shoulder position | ±0.10 mm | ±0.020 mm |
| Concentricity OD to ID | 0.05 mm TIR | 0.010 mm TIR |
| Roundness | 0.02 mm | 0.005 mm |
| Thread class | 6g / 2A | 4h / 3A |
| Surface finish, as turned | Ra 1.6 µm | Ra 0.4 µm |
Standard is what a normal quotation assumes. Precision is available on nominated features and is priced separately, because it needs extra setups, in-process gauging and CMM verification. Call out only the features that need it — blanket-tightening a drawing is the single most common reason a quote comes back expensive.
CNC Boring Tolerances & Surface Finish
Turned Beryllium Copper holds diameter tolerances to about ±0.005 mm with concentricity within 0.01 mm and good roundness. Turned finishes of Ra 0.4–0.8 µm are achievable with finishing passes and sharp tooling.
Final tolerances are governed by the material's behaviour, wall thickness and overall stiffness. We give honest DFM feedback if a callout would be costly or better achieved another way.
Design Tips for CNC Boring Beryllium Copper
A few design choices make a real difference to cost and quality. Consistent diameters, standard thread forms and avoiding extremely long, slender features help Beryllium Copper turned parts stay concentric and economical. If you send your model early, we will return practical DFM feedback before you commit to production.
Applications of CNC Boring Beryllium Copper
CNC Boring of Beryllium Copper supports parts across aerospace, medical, automotive, electronics, semiconductor, energy and general industrial sectors. We scale from one-off prototypes to ongoing production while holding the same quality.
Typical Beryllium Copper Parts for CNC Boring
Illustrative examples of CNC Boring Beryllium Copper parts and the callouts that usually drive the process plan. They show the kind of work that fits this process; they are not specific customer orders.
Nozzle body
- Material
- Beryllium Copper
- Size
- Ø12 × 46 mm
- Key callouts
- Ø0.6 mm orifice ±0.01 mm, internal taper 20°
- Batch
- 600 pcs
Orifice EDM-drilled after turning; a drill wanders at that diameter.
Bearing spacer
- Material
- Beryllium Copper
- Size
- Ø35 / Ø22 × 9 mm
- Key callouts
- Thickness ±0.005 mm, parallelism 0.005 mm
- Batch
- 4,000 pcs
Turned then double-disc ground — thickness this tight is not a lathe job.
Precision shaft
- Material
- Beryllium Copper
- Size
- Ø16 × 240 mm
- Key callouts
- OD h6, concentricity 0.01 mm TIR, keyway 5 H9
- Batch
- 1,000 pcs / year
Turned between centres so both journals share one datum.
No drawing yet? Build one in the browser.
Set the metal, dimensions and features, watch the 3D model update as you type, then switch to the 2D sheet to add dimensions and tolerances. Download it or send it straight to us with your RFQ.
What We Need to Quote CNC Boring Beryllium Copper
- GeometrySTEP or IGES for the 3D model, plus a PDF drawing if you have tolerance callouts. A dimensioned sketch is enough to start.
- MaterialThe exact Beryllium Copper grade and condition — temper, heat-treat state or hardness. If you are not sure, tell us the function and we will suggest one.
- QuantityPrototype count and the expected annual volume. Both change how the part is made and therefore what it costs.
- TolerancesWhich features are critical. Everything else runs to our standard tolerance, which is what keeps the price sensible.
- FinishSurface treatment, cosmetic requirements, and any faces that must be masked.
- DocumentsWhether you need a material certificate, dimensional report, FAIR or PPAP with the shipment.
Missing something from the list is not a problem — send what you have. We will come back with the specific questions rather than a generic form.
Other Metals for CNC Boring
Other Processes for Beryllium Copper
Send the drawing, the Beryllium Copper grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.
Request a QuoteFrequently Asked Questions
What is the typical lead time and minimum order for CNC Boring Beryllium Copper?
CNC Boring prototypes for Beryllium Copper can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
What is CNC Boring Beryllium Copper and how is it done?
CNC Boring Beryllium Copper refers to boring enlarges and finishes existing holes to precise diameter, roundness and surface finish. Applied to Beryllium Copper — high strength with good conductivity and fatigue life — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Does CNC Boring Beryllium Copper require dedicated tooling?
Most Beryllium Copper turning work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
Can VT machining make custom Beryllium Copper parts to my drawing?
Yes. Beryllium Copper turning is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.
What surface finish is achievable on Beryllium Copper with CNC Boring?
Surface finish on Beryllium Copper is controlled to your specification; we confirm the achievable Ra against your callout.
Which industries use CNC Boring Beryllium Copper parts?
CNC Boring Beryllium Copper parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Beryllium Copper components are required.
