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RF-25 or Baileigh vid-15 Realistic Depth of Cut

Can anyone tell me what the realistic depth of cut a person can take using a round post mill like an RF-25 or Baileigh vfd-15? Additionally, would a round post mill be suitable for machining small titanium parts for knives?
I don't think there is one specific answer for feeds and speeds. A lot of the references are for HS endmills and don't take into account modern carbide tooling and geometry. My suggestion here is start with the recommended listings and go from there till you get the results you want. Cooling primarily and lubrication secondary allows for increased cuts particularly with carbide.

Here the game is play and occasionally you pay as in any lesson.

As to titanium I don't see why not as people have done it on small lighter mills.