The drill bit can be twisted between thumb and forefinger (like 2 out of 5 are not very straight) and will drill through the plastic inside the same or larger size drill bit. size if you have enough patience. But I'm not sure how that would help as it's too short to go very far and the large bead is left behind the nozzle point. If you try to use it while the nozzle is hot, the glue holding the drill by the handle will melt and the drill will get stuck in the nozzle. I'm not sure how long I'll be using it.