Originally Posted by stang5197  Thanks for the info.
big_mak I will check into the gorillamill endmills, I am a big fan of the Niagra stuff but always looking for cheaper/better end mills.
We have some new Niagra HSS TiCN 3 flute endmills here that are 0.75" diameter 1.75" flute lenght.
According to Niagra they recommend 3210RPM and 72IPM when running at there recommended 630SFPM and 0.0075" FPT. The axial depth would be 0.375
Do the feed and speeds look right for HSS? The RPM seems too low |
IMO those are high end #s
3200 is flyin for HSS and .0075 is an aggresive feedrate.
You may want to keep your hand on your overides and start in easy with those settings.