Carbide End Mills
| Chip Load per Tooth | ||||
| Material | SFM | 1/8" | 1/4" | 1/2" |
| Aluminum | 600+ | .0010" | .0020" | .0040" |
| Brass | 300 | .0010" | .0020" | .0030" |
| Mild Steel | 250 | .0010" | .0020" | .0030" |
| Plastics | 600+ | .0010" | .0030" | .0060" |
| Stainless Steel | 200 | .0005" | .0010" | .0020" |
| Titanium | 150 | .0005" | .0010" | .0015" |
HSS End Mills
| Chip Load per Tooth | ||||
| Material | SFM | 1/8" | 1/4" | 1/2" |
| Aluminum | 300 | .0010" | .0015" | .0020" |
| Brass | 150 | .0010" | .0020" | .0030" |
| Mild Steel | 100 | .0005" | .0010" | .0020" |
| Plastics | 400 | .0010" | .0015" | .0020" |
| Stainless Steel | 80 | .0005" | .0010" | .0020" |
| Titanium | 40 | .0005" | .0010" | .0015" |
Mill/Drill Spindle Speeds
Spindle Speed = 4 x SFM / Tool Diameter
Mill Feed Rate
Feed Rate = Chip Load x Teeth x Spindle Speed
Lathe Spindle Speeds
Spindle Speed = 4 x SFM / Part Diameter