Ahhh.....just googled it....Nokita is out of business. But some places still seem to have em like this one for $23....

http://www.ringmastertool.com/PAGES/nikotapages/toolskits.htm

Just do a google search and you'll probably find a ton of different cheap ones. And at $23 who cares if the company is gone? Thats the cost of 2 of the more expensive dremel bits alone.