Hi, Craftydeb,
Your problem is one that can be frustrating...:icon_31:
There's a newer product we sell that's gotten some very positive feedback, called the WiReam (wire ream). It's in our catalog, at <font color=chocolate>this page of our website.</font color>
With this tool, you fasten one end of the diamond-coated reaming wire to a handsaw frame, put your bead(s) on the wire, then fasten the other end of the wire into the frame. From that point, it's easy to work the bead(s) up & down on the wire to ream them efficiently.
As an alternative to drilling, this can't be beat for its simplicity.
:icon_36:--Dave