Quote Originally Posted by luke11cnc View Post
what about plunge cuts of flat bottom hole ??

James
as has been mentioned before, you will end up with a small dome in the center. These cutters plunge much easier than two flute cutters.

My 6mm single flute is actually 5.95mm. With the right data the cutting is very accurate.

I used 1mm two flute cutters in the past on aluminium and acrylic with very little success. But the single flute 1mm cutter did a fine job and is still in one piece after about 3 hours work in aluminium.