If anyone's interested, there's a very nice boxed, 3C collet set for sale on eBay. All the details are there, but if you want to know more about it, just ask. Thanks for looking.
http://www.ebay.com/itm/Boxed-3C-Co...5?pt=BI_Tool_Work_Holding&hash=item3f0d326a67
http://www.ebay.com/itm/Boxed-3C-Co...5?pt=BI_Tool_Work_Holding&hash=item3f0d326a67