Maximum face mill diameter for R8 spindle

I'd like to add an indexable face mill, preferably
6" diameter to my mill tooling. Will an R8 spindle
handle that diameter without excessive flexing
and chatter?
Reply to
Jim Stewart
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You've got two chances, slim and none. I got one this size for my NMTB40 4 hp. Excello and I can only do very light cuts. This machine just LOVES a 3" sandvick R390 face mill. Make PILES o' chips fast. Inserts do make a huge diference on the large diameter face mills.
Reply to
Karl Townsend
Probably have to remove half the inserts and take light cuts. Anything over three inch is a waste of dollars.
Reply to

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