Any reason that these numbered drill (plexi-point) bits can't be used to enlarge holes? Or will they cause chipping? The #40 worked well for the initial drilling of the back window.
For enlarging the hole from #40 to #36 for the roll bar side of the window, would the #36 plexiglass-point be OK for this job, since it will be enlarged to #27 anyway later? Or is a #36 reamer required?
Also, for final drilling to #27 for all the holes, would a plexi-point be OK, since one will be backing up the hole with a piece of wood? Or would a step bit be better, even though the hole would be bigger 5/32". Of course fo rate back holes, I doubt that there is a step bit that would initial fit into the #40 holes.