5/8" Diameter 300 Series Stainless Stub (1.5XD-2XD): 1-1/4" 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 303, 304 & 316 Stainless Steel (we based it off 316 so you can increase your SFM to 400 for 303):

5/8" Diameter x 3/4" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
5/8" Diameter x 1-1/4" Length of Cut x 5 Flute Alcrona Pro Coated Variable Pitch End Mill
| Axial DOC | 1-1/4" and Below |
| Radial DOC | .055" |
| SFM | 350 |
| RPM | 2,140 |
| CLPT | .010" |
| IPM | 107 |
| Metal Removal Rate | 7.35 |
*Do not use these Speeds/Feeds if you are not running an Optimized Tool Path
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