At 05:05 PM 8/27/2014, Dave Mcneely wrote:
>Harbor Freight sells at lower prices.  I've heard that you get what
>you pay for, and that at HF that might not be much.  However, I
>bought a tap and die set from them a few years back for about what
>you mentioned for a single die.  I've used some of the tools, and
>everything always worked fine {within the limits of my skills ;-) } .  mcneely

5/8-27 and 7/8-27 are very unusual threads, used specifically for
microphone stands and nothing else I know of off hand.  Not likely to
find such exotica in any ordinary assortment

Yours,
David