if you are scare of the bite, use some leather gloves. (if you use ordinary cotton glove, if they bite, their teeth can get stuck to the cotton fibres, if leather, it will only leave marks & no stuck teeth etc) And handle them from there on. They will get use to your handling & you wont cause any harm, then the gloves can come off.
as a bonus to them, after handling, give food. so they will respone to your handling as a pre-food treats.
Good luck.