BUT those are RAW cutters that might work as is, just like the HS bits kind of work as is. I disagree on the cemented carbide blanks for aluminum for the main reason you can't sharpen them properly with a bench grinder, but you can sharpen HS bits with one. HS works just fine and dandy in aluminum and mild steels when sharpened properly.
If you don't want to learn how or be bothered with sharpening, get "indexable" carbide tooling. A 1" shell cutter is the maximum diameter that should be used with that mill. Used indexible carbide endmills are cheap on ebay. They cut like butter and leave nice finishes.
we have used this same style brazed carbide tool at work, and right out of the box they cut wonderfully, we use them on anything from aluminum to Tool steel...the also last nearly forever...I was under the impression that the ones from HF were also pre finished...the have a very sharp edge and look right to me...I will try some test cuts this weekend and post results I think i have some A2 laying around...
also they can be sharpened on a bench grinder with the proper wheel(green wheel) and a steady hand/tool rest...
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