Looking for a source or 1/2" diameter 8" length boring profiling and threading bars

[Green0]

I am thinking about putting a toolchanger on a lathe, but the toolchanger will only accomidate maximum 1/2" or (maybe) 5/8" diameter boring tools.

I need to find threading, profiling, and boring tools with 8" length in a 1/2" shank size or under.

I don't care if they have to be carbide to be hard enough to produce good results, but I'm having a lot of trouble locating anything under .75" diameter in threading tools with an 8" overall length.

[Zumba]

A quick search on MSC gives me 8 hits for 1/2" x 8" indexable boring bars.

Here's an inside grooving bar...
http://www1.mscdirect.com/CGI/NNSRIT...MT4NO=16015011