Fiegao 380 shaft size problem

[Ctonez]

The specs say 1/8" shaft size, but my 1/8 octura couplers aren't tight on the shaft, there's a little slop that causes the coupler to have a slight wobble.

Anybody else experience this?
Is there a coupler I can get that'll work?
Any tips on how I can tighten up the slop? I've tried different tape, but the fit is snug enough that the tape just bunches up. This also means there's not enough room to get a brass tube or teflon sheath to work.

[Steven Vaccaro]

Strange, let me put some calipers on some of those later today.

[Ctonez]

...one tool I have yet to add to the collection.
Thanks Steven.