Step-Over Guide
Step-over — also called radial engagement or radial depth of cut (ae) — is how far a tool moves sideways between successive passes, usually expressed as a percentage of tool diameter. It directly trades off surface finish against cycle time.
General Reference Ranges
These are commonly published starting ranges used across general milling practice — not a EUROCUT-specific recommendation:
| Operation | Typical Step-Over (% of diameter) |
|---|---|
| Roughing | 40–75% |
| Semi-finishing | 20–40% |
| Finishing | ≤10% |
A smaller step-over leaves shallower scallops between passes (better surface finish) at the cost of more passes and longer cycle time.
EUROCUT-specific step-over recommendations by application are pending final manufacturer confirmation.