machining plastic ABS POLYCARBONATE

[pardal]

What are the specifications to drill and tap ABS and Polycarbonate???
The task to do is drill and tap 5/16 NC a trought hole about 10 mm thick.
Some pieces are just drilled and need only to tap.
Other are with no holes so I think to use a drill-tap tool.
I need to known
Cuting speed .
Tap and drill material
Its cuting angle and flutes.

RPM
Drill Feeding

Thanks in advance.






Pardal