1/2 roughing endmill

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umahunter

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Recommendations for a 1/2 inch x1/2 shank roughing endmill for 1018 that won't break the bank 2 vs 4 flute ???
 
In a roughing end mill you're not going to find a two flute, maybe 3 flute, mostly 4 flute, in a 1/2" size
 
I've never seen a 2 flute roughing endmill. Do they exist? I've been using these 3 & 4 flute roughers & I'm pretty happy with them. They used to be listed as Niagara but mine do not say Niagara on them & they did not come in Niagra packaging. Maybe someone complained. Anyways price has gone up a bit since I got them but still worth the price & I would definitely buy again.

http://www.ebay.com/itm/172258804229?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

http://www.ebay.com/itm/131863892524?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT
 
Thanks dark zero those are the exact ones I was looking at just cant seem to post an ebay link on here for some reason ??? How are they longevity wise ???
 
I'm wondering what would be the difference in choosing a 3 vs 4 flute? ? ?
 
Longevity wise, I can't tell you, I've only had them for a couple of months & I don't use them everyday. But they haven't chipped or dulled on my yet. They seem to be pretty nice & their cobalt.

I got the 3 flute to use with aluminum.
 
I use a 3 flute 1/2" for roughing aluminum and it works great. I bought mime from Encl and I think it's a Hertel or mid range / priced. grade. I was really surprised how nice a finish it leaves, pretty much as good as an std end mill. I'm able to take .060 passes on my little LMS mill
 
Just bought a few Niagra cutter cobalt/TiCn coated roughers in 1/2" from Ebay.
I think Niagra cutter is getting away from HSS and cobalt end mills, especially un-coated bright, which is what I mainly use for aluminum.. Ebay has some good deals,..sometimes.
I bought mine for $10 shipped.
There are fine and coarse roughing end mills, I found out.
 
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