Brush and Vacuum Clean Duct Simultaneously

What happens here

Insert the drill-attached brush and rod assembly into the opposite end of the flexible dryer vent hose, ensuring it passes through the hose and into the vacuum adapter. Turn on the shop vacuum. With the vacuum running, engage the drill in the forward direction and slowly push the rotating brush through the entire length of the dryer vent hose. As the brush dislodges lint, the vacuum will immediately suck it up, preventing it from accumulating or falling out onto the floor. Slowly pull the brush back out while the drill and vacuum are still running.

Goal: Thoroughly clean the dryer vent hose by simultaneously brushing and vacuuming.