Absolutely amazing thing for a vacuum cleaner bag, it allows air to create a vacuum and gets to retain the dirt sucked Truc ... crazy for a vacuum cleaner bag ... No, no kidding, I what else could put as a comment? Do not vacuum with liquid ... But it is in the instructions of the cleaner.
Joking aside, I aspire to everything with the vacuum cleaner (wood, metal waste, dust and other junk found in a workshop) and I have not drilled any bag ... I think it ' it is being asked (in addition to let enough air)