⚡ Speeds & Feeds Lookup
Quick SFM/RPM reference and calculator. Starting points for common materials — always verify with your tooling manufacturer.
RPM & Feed Calculator
Enter values above
SFM Reference — Milling (Starting Points)
| Material | HSS SFM | Carbide SFM | Chip Load (IPT) ½" EM |
|---|
RPM = (SFM × 3.82) / Diameter
Feed Rate (IPM) = RPM × # Flutes × Chip Load
These are conservative starting points. Adjust based on rigidity, tool condition, coolant, and depth of cut.