That can happen, so far not on any of the ones I have had to use big tools on, but yes that can always happen. first suggestion is always use a small allen wrench in the vent hole. There is a mat I use at work that's on my bench, it permits you to use power tools like a router using the mat to hold the object being routed. Its a rubber type mat and stuff doesn't slide on it at all. Not sure where my company gets them from or what they are called but would probably be ideal for this situation. They grip like nothing else I have ever see. I use just a dab of E-liquid on my threads spread with a Q-tip or tissue does a good job, I also use it on my O rings.