A quick search turned up six choices for 6" long 1/16" bits at MSC.

I've pasted the incredibly long URL of my search below, so maybe you
can jump right to it by pasting in your browser window. The key was
to ask for "aircraft" length, rather than extra long. . .

http://www.mscdirect.com/IWCatSectio...=6&NameVector%
B1%5D.Name=Size&NameVector%5B1%5D.Value=.0625&Name Vector.length=2&View.x.x=121&View.x.y=5

Cheers,

Frank Ford
www.frets.com