Collet sizes for X-Carve Pro

[Ken4]

this might help?

Max Bit Size for XCP

The largest ER-16 collet is 3/8", so I get that we can technically get as large as we can fit in that, but I assume that isn’t really the full answer to my question. I’m guessing bit size, spindle power and frame rigidity are all related, and ultimately determine together what the true top-end of a machine’s capabilities are. So how big of a bit can the X-Carve Pro handle? Did Inventables use ER-16 collets because the machine wasn’t capable of handling half-inch shanked bits? Is that the next …