Quote:
Originally posted by ChrioN
Clog? 2? why not 4?
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4 flute endmills clog up easy with soft materials. The groves will fill up with copper causing a serious lack of cutting ability, thus breaking the endmill. 4 flute cut faster but at the cost of clogging up and breaking. I have yet to have a 2 flute clogg up. Thats all I use on Copper and AL. And now that I found a good mail order suppplier near by all I use is 2 flute tin coated and carbide endmills.
Use whatever works for you though!