Don't know if this helps, but I've been cutting .062 and .093 aluminum 6061 instrument panels with a 1/8 in bit at full router speed and at 15 ipm dry with an Amana type bit "O"
at
http://www.toolstoday.com/p-5801-alu...iantids=9799,0
for $27.00 and they work just great. I have a plunge depth of 8 ipm and an xy feed of 15 ipm and take off 12 thou per pass. The 1 hp Bosch Colt router bearings get hotter than the cutter.
Tried wd40 at first, and it just made the swarf gum up, found that it cut better dry. I also found that using climb instead of conventional milling made a great difference!
As for 90 v carve, I found that even the cheap ones work pretty well on wood. I agree with the earlier poster, I bet the Amana v bit you got was dropped or something.
As long as we're on favorite bits, I found one for profiling or pocketing that works great for not only wood but cutting acrylic or lexan type plastic - its a straight (the flutes are straight as well as it produces a straight dado type groove) 1/8 inch Bosch bit sold at Lowe's. Not expensive (about $20 I think), great on plastic. (You don't want to use a mill type bit on plastic.)
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