Quote Originally Posted by cooliced View Post
This discussion has got me very interested.

I have a sherline mill, ive currently got hss 4 flute roughing end mill and i can safely goto 0.3 DOC at 350 mm/min. so cutting ally takes forever and the finish is shit tbh...

Do you think a single flute carbide cutter will be good for me??

Edit: i use WD40
Yes they will perform far better in Ali than 4Flute hogger. . . . Also don't be afraid to go higher on the FR and DOC.
Depending on Max spindle speed you should easily double those figures.! (If machines upto it.?). . . Chipload is the key to cutting Ali (And most other materials) send the heat away with the chip and you'll be surprised just how deep and fast you can cut in Ali.!
Most of my work is cutting Ali and find blown air to clear chips mixed with the odd squirt of WD40 type fluid works best.