First off let me say I am not the one selling and I am not promoting the item. But, I ran across this and since I have some old QC carving and cutting bits I am thinking this might be really good, especially with some lock tight?
Someone is selling an adapter for with a hex set screw for the Carve tight system on ebay.
http://www.ebay.com/itm/Craftsman-Ca...item3f0d4e9460