Yes, I have every size for standard bulkeads. Mine are in metric though, I would suggest taking them all or bringing the bulkheads with you to check.,
Or you can bring your tank here, or I can bring the saws to you.
I understand that a cordless drill might be better, but it probably does not matter.
I have cordless drill also, with extra batteries.
lmk
you can pick them up at anytime.
Bill