Face mill Speed question | The HobbyMachinist
WEBDec 9, 2018 · I got a " Face mill with my mill thats got 4 carbide inserts on it and I can't seem to get this thing to cut well. What is the proper RPM I should be spinning this thing? I have tried running it at around 450 RPM but it just seems to make a lot of noise and spits out tiny little chips, almost like grinding dust.