I have to agree with everything Tuomas said...

Why power the tool with the vacuum cleaner when you can simply hold a conventional vacuum cleaner next to the bit while using an electrically-powered tool?

Also, there's no need to use the monster shop vac to collect dust from a small Dremel-like tool. I have a monster for the shop floor and the big machines but it's way too powerful for vacuuming the workbench with lots of small tools and bits that would be sucked up. I bought a small hand-held...

https://www.amazon.com/Armor-Gallon-...ll+shop+vacuum

and it's much more portable and has enough suction to handle Dremel-dust and the like. Its portability is its main attraction. Manhandling the monster into the house to vacuum the fireplaces is a real pain; the little one fits under your arm and does the job well. Its smaller, more flexible hose makes it much easier to use inside the car; the monster's hose is like some sort of angry anaconda intent on escape.