Are you allowed to drill aluminum pieces?

Hey we were wondering if were were allowed to drill new holes on aluminum structure pieces.

I believe that you can as long as you dont add any non vex parts

Yes, totally. The drill bit size you need for VEX screws and shafts is 11/64" which you’ll find in most bit set. If you need an individual one in just that size:

Perfect - thank you. We need to drill a while to properly attach a sensor.

I am glad it is ok to do so.