Custom geometry
Long reach that clears a fixture. A stepped stem for a bore you cannot reach square-on. A star build with mixed ball sizes. If it can be ground, we will quote it — and tell you if it cannot.
A 2D drawing is ideal. A sketch with dimensions, or a photo with a ruler, also works.
Feasibility, tolerance capability and price, next business day. Including the features we cannot hold.
Machined and measured. Photos and measured values before dispatch for your approval.
Same fixture, same operator, same measurement routine as the first article.
Four numbers are enough to quote. Everything else can follow.
Also useful: the feature you are measuring, the machine or probe head, the quantity, and any tolerance the drawing calls out.
Typical values for custom work. Tighter is sometimes possible — ask, and we will say yes or no rather than yes and hope.
| Feature | Typical range | Notes |
|---|---|---|
| Ball diameter | Ø0.5 – Ø8.0 mm | Ruby standard; silicon nitride and zirconia on request |
| Overall length | 10 – 300 mm | Beyond 150 mm we recommend carbon fibre or ceramic |
| Stem diameter | Ø0.5 – Ø6.0 mm | Stepped and tapered stems available |
| Ball grade | Grade 10 to ISO 3290 | Grade 5 with imported balls, subject to size |
| Ball diameter tolerance | ±2 µm standard | ±1 µm with imported grade 5 balls |
| Sphericity | Per ISO 3290 grade 10 (≈0.25 µm) | Measured per batch at an accredited laboratory |
| Thread | M2 / M3 / M4 / M5 | Non-standard interfaces quoted individually |
| MOQ | 1 pc for first article | Volume pricing from 50 pcs |
| First article lead time | 72 hours | From receipt of a complete drawing |
Yes, on request — send yours, or use a mutual NDA. We do not manufacture under our own brand for anyone else's design, and we do not resell custom geometry.
Usually USD 50–120 depending on geometry, including measurement. It is credited against the first production order.
If you send the sample, yes. We measure it, produce a drawing for your approval, then manufacture. Return freight on the sample is on you.
Yes — a dimensional report against the agreed drawing, plus the standard batch calibration for the ball and thread.
PDF, STEP, DXF or a photo with dimensions. If it is a bad idea, we will tell you that too — that is the point of asking a factory instead of a catalogue.