I use a 1/16th inch hole punch to make my holes for sling cups. Rich had a post on here about not using pre punched cups for slings and even had a pic of cups that he had taped over the holes. I went hunting for a smaller hole punch after seeing that. anywho best of luck I really hope you find him and not on the bottom of your shoe.
on the subject of a database for T's. not as in depth as what you are looking for but here's a couple text based data bases that you may find interesting.
http://research.amnh.org/iz/spiders/...NERIC.IND.html
http://exoticfauna.com/tarantulabibliography/index.html