To cut all those 3/4" Mic 6 aluminum plates, I used the Amana 1/4" or 1/8" Single Flute end mills. I would usually run about 40 IPM with both diameter end mills. DOC for 1/8" was 1mm. DOC for 1/4" was 2mm. RPM for 1/8" was 18,000. RPM for 1/4" was 12,000. I used ALOT of WD40. This Mic 6 aluminum doesn't cut like 6061. It's gummy with usual feeds and speeds that you would use for 6061. I have machined LOTS of 6061 aluminum with NO LUBRICANT...and it all came out just fine. For pocketing, instead of a 50% stepover like I use with 6061, I used a 40% stepover. I had to learn the hard way with the Mic 6. But once I figured it out, it was coming off the machine great. Surface finishes were fantastic.