[ATM] Machine work - should I use adjustable hand reamer?

[Vladimir Galogaza]

Gil,

>I want my ground shaft (2 thousand under 3/4 inch) to
> fit exactly (turn with no play) in a hole drilled through 
>a 1/2 inch thick 6061 alum. plate.  

I am not sure that aluminum is suitable for this.
There is risk of sticking. A bronze insert will be better
to hold the rotating shaft or some kind of plastic
between shaft and aluminum, depends on load.

Regards
Vladimir.