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Need to cut a 3.00 diameter hole in 1 inch 6061 alum . Please recommend feed rate type of bit and RPM.


need to cut a 3.00 diameter hole in 1 inch  6061 alum .

My CNC will go down to 8000 rpm

Please recommend feed rate  type of bit  and RPM

this is not a high precision cut ….and surface quality is not a major factor  TY Lexi

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Interpolate the hole with a 1/2″-3/4″ end mill.  I’d use a carbide bit since your spindle wants higher rpms.  Be sure to use some lubricant–mist cooling or flood cooling or chips will weld to your end mill.

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