Anyone know what aluminum shaft ahs an inside diameter of 86 thousands?

Are you sure you mean 86 thousandths (.086)?

That is awfully small.  No aluminum arrow that I am aware of has an inside diameter that small.  A 1214 shaft would have an inside diameter of around .1595" I believe. (12/64" = 0.1875 minus .028 = 0.1595).  You are wanting almost 1/2 of that.

OK, lets try .86/100's

Now you have gone off the other end.  A 2712 shaft would have an inside diameter of 0.3978 if my math is correct (27/64" = 0.4218 minus .024 = 0.3978).  Now you are wanting over twice that.  

What are you trying to do?

Solved my Mr. Hermon. It was  .286 for a 2013.

This place ins kind of handy.

Thanks.