and 
Cutting Speed and Feed Practice
Using the formulas
and
find the correct RPM and Cutting time for the following problems.
| Material | Diameter | Length of Cut | RPM | Time Required |
| Machine Steel | 1.500 | 6.000 | ||
| Tool Steel | .500 | 3.000 | ||
| Aluminum | 6.000 | 15.000 | ||
| Cast Iron | 12.750 | 36.000 | ||
| Machine Steel | .750 | .500 | ||
| Aluminum | 2.500 | 7.375 | ||
| Cast Iron | 9.875 | .750 | ||
| Bronze | 2.625 | 16.937 | ||
| Tool Steel | .875 | 4.000 | ||
| Tool Steel | .250 | 3.500 |