Oh this is easy fix. Happened to me too. The collet is made up of 2 parts similar to a router collet. But you have to snap the bit holder into the nut before you install a bit. The holder pushes into place with a click. Then the bits will run true.
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That’s not it. This was addressed up above. Wish it were though…
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I know this topic is dead and buried but one last thought…
In my lifetime as a machinist, I HAVE seen one instance of a bent carbide endmill. Solid carbide 1/4" endmill…bent! I don’t know if it was bent from use, or if it was made that way. I don’t know how either one is possible. I didn’t believe it untill I saw the guy put it on a granite table and tried to roll it.
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it would have to be ground that way, I have seen that before. carbide will break before being bent. they can move around alittle in a collet but they wont bend. I have seen them where the cutting edge was not concentric to the shank. but it is very rare.
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I would say if you had a bent bit, it was high speed steel. Carbide breaks
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