I have a pre-drill hole that is .625 dia and 1.25 deep. I want to plunge a 11/16 end mill through it(Hole needs to be flat at the bottom) I have 2 tool options.
Either a 2 flute EM 11/16 carbide, 30deg helix, TIN finish or a 4 flute HSS EM 11/16, 35 helix, no coating. The material I'm cutting into is aluminum 6061. I'm leading towards the 2 flute, but worried about the TIN coating. Anybody have any speed/feeds suggestions for the TIN coating.
Thank you.
Here is a link to the coated EM.
https://www.mscdirect.com/product/details/71544878?rd=k&tg=Recommendations&tpp=false&searchAhead=true&searchAheadTerm=71544878&typahddsp=71544878&hdrsrh=true
Either a 2 flute EM 11/16 carbide, 30deg helix, TIN finish or a 4 flute HSS EM 11/16, 35 helix, no coating. The material I'm cutting into is aluminum 6061. I'm leading towards the 2 flute, but worried about the TIN coating. Anybody have any speed/feeds suggestions for the TIN coating.
Thank you.
Here is a link to the coated EM.
https://www.mscdirect.com/product/details/71544878?rd=k&tg=Recommendations&tpp=false&searchAhead=true&searchAheadTerm=71544878&typahddsp=71544878&hdrsrh=true
