Here is how I have done it.
Step one, use a small diameter pin punch to knock out the center mandril.
Step two, drill as normal, and if the rivet starts to spin on you, use a flat blade screwdriver or other tool to hold the head from spinning.
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Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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