How to drill out resin heads?

[sfs99a]

Hi guys,
I'm new to this group and like you all, I am a big batman fan. I was wondering what is the process of drilling out resin head. i.e. what kind or size of bit, clamping tips etc .... I purchased a 1:6 Christian bale head and don't want to trash it on my first attempt at drilling it out. Any and all suggestion will be greatly appreciated.
Regards,
Sean

[retroprops]

It depends on the size of the neck stump, I use a 9/16” spade bit for a Sideshow neck. I just hold on to it and drill it making sure I’m going straight. Sometimes I drill a pilot hole and Dremel the rest out with a steel cutter.