You won’t get anything near that 700 CFM, the factory specs on CFM about about as accurate as the 3.5 HP your router has. But whatever you get, it will be reduced considerably by choking it down to that puny vac hose. Someone explained it, DCs move at low static pressures, vacs are just the opposite.

"I long for the day when coke was a cola and a joint was a bad place to be" Merle Haggartd