ER11 - 5/16

I knew ER16 had an out of spec oversize collet for 7/16 available. I
recently discovered that ER11 has one that is 5/16. I've got one small CNC
mill with a hgih speed spindle that has an ER11 spindle nose. Occassionally
it would be handy to slot with a 5/16 ball mill. Strictly light fast cuts.
No heavy HP stuff. I've got my FS calculator set to limit loads for that
machine to .25 HP or less already anyway.
Anyway, since I've been told that size collet is out of spec for ER11 what
are the risks of running it? If its just breaking the collet I don't think
that's a huge issue given my care to limit cutting loads.
Reply to
Bob La Londe
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