Inputs
Engagement
50% D
100% D
Chipload
Chipload auto-suggests from material + diameter and adjusts for engagement. You can override it any time.
Results
SFM
m/min
Chip thinning factor
Formula: Feed = RPM × Flutes × Chipload.
Notes
Values are conservative starting points for common carbide router tools. Verify workholding, listen for chatter, and test on scrap.