1/4" Diameter PH Series Stainless Stub (1.5XD-2XD): 1/2" 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):

1/4" Diameter x 3/8" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
1/4" Diameter x 1/2" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
| Axial DOC | 1/2" and Below |
| Radial DOC | .025" |
| SFM | 300 |
| RPM | 4,584 |
| CLPT | .003" |
| IPM | 68.7 |
| Metal Removal Rate | 0.85 |
*Do not use these Speeds/Feeds if you are not running an Optimized Tool Path
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