Product Detail
Ball Nose End Mill
Carbide ball for steel fillet sphere-contact geometry and scallop/step-over fields.
Geometry lane · ferrous sphere contact
Ball radius and scallop height on steel fillets
When CAM leaves a scallop height on a steel or stainless fillet, you need sphere contact geometry, not a flat end. This page opens on ball radius, step-over, and ferrous contour envelopes—aluminum freeform tip glaze lives on the PCD ball series.
Geometry / CAM field table
| Field | Role on ferrous contours |
|---|---|
| Ball Ø / radius | Matches fillet envelope on the model |
| Scallop or Ra target | Drives step-over on finish passes |
| Step-over strategy | Programmer notes for semi vs finish |
| Flute preference | Chip space vs finish lines |
| Runout budget | Finish holder capability |
Print cues for sphere contact
- Fillet radius or freeform envelope on the CAD
- Blend into a wall that still needs a full sphere path
- If only a partial corner R on a wall → bull nose / corner radius
Ferrous geometry intake
- Steel / stainless / CI grade
- Ball Ø / radius; flute preference
- Finish vs semi-finish pass plan
- Runout budget on the finish holder
Aluminum freeform tip wear
Abrasive Al 3D tip glaze → PCD ball nose end mill.
Carbide ball geometry FAQ
Bull nose confusion
Bull nose keeps a wall with a partial R. Full sphere contact stays on this URL.
Stock ball kits
Manufacturer quote from the contour print and scallop target.
Al tip glaze photos
Send those to the PCD ball page—different substrate and failure story.
Fillet model ready?
Bring radius envelope and steel grade—geometry first, not an aluminum tip-wear packet.