Speeds and Feeds Calculator

Below are some general guidelines for cutting speeds for various materials. These are all generally on the conservative side, favoring a finished part over a broken tool. If it sounds good when you’re cutting it, then crank it!

If at all possible, use the recommendations from the tool manufacturer. If those aren’t available, then these values can generally be used successfully.

For Carbide Cutting Tools

MaterialCutting Speed
Aluminum1000 SFM
Brass/Bronze1000 SFM
Magnesium1000 SFM
Mild Steel400 SFM
Cast Iron200 SFM
Stainless Steel150 SFM
Alloy Steel/Tool Steel200 SFM
Titanium100 SFM
High-Temp Alloys50 SFM