1/4" Diameter Tool Steel Regular (3XD-5XD): 3/4" LOC and Below. Here are the recommended End Mills as well as Speeds and Feeds for the Optimized Tool Path (like a VoluMill, DynamicMill or iMachining) in Tool Steels like A2, H13, P20 & S7 (36 HRc and Below):

1/4" Diameter x 3/4" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
| Axial DOC | 3/4" and Below |
| Radial DOC | .020" |
| SFM | 350 |
| RPM | 5,348 |
| CLPT | .003" |
| IPM |
80.22 |
| Metal Removal Rate | 1.20 |
*Do not use these Speeds/Feeds if you are not running an Optimized Tool Path
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