A flexible drill and method of drilling a material are disclosed.
According to one embodiment, a flexible drill includes a lower
sub-assembly connected to an upper sub-assembly, where the lower
sub-assembly comprises a retainer tube and the upper sub-assembly
comprises a guiding tube; a drilling tip, and capable of orienting the
drilling tip at a predetermined position after accessing a material to he
drilled through a substantially straight passage having a lone axis. The
predetermined position is at least 10.degree. off of the lone axis of the
substantially straight passage. According to one embodiment, a method of
drilling a material includes the steps of (a) providing a flexible drill;
(b) advancing the drill through a substantially straight passage until
the drilling tip accesses the material to be drilled, thereby orienting
the drilling tip at the predetermined position; and (c) actuating the
drill.