3/8" Diameter PH Series Stainless Regular (3XD-5XD): 1" 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 17-4PH and 15-5 PH (38-42 HRc) and Titanium (6AL4V):

3/8" Diameter x 3/4" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
3/8" Diameter x 7/8" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
3/8" Diameter x 1" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
| Axial DOC | 1" and Below |
| Radial DOC | .025" |
| SFM | 300 |
| RPM | 3,056 |
| CLPT | .003" |
| IPM | 45.8 |
| Metal Removal Rate | 1.14 |
*Do not use these Speeds/Feeds if you are not running an Optimized Tool Path
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