greg mann said:
One of the best and cheapest solutions is to buy the Festool 27mm hose end (487071 @ about $17.00). It won't fit your Fein hose as is but it has three pieces to it. If you remove the hose retaining ring and pull out the interior threaded ring you can then re-insert the retaining ring. You will find that your Fein hose end will now slide into the adapter and fit perfectly. The retaining ring will pop off when a screwdriver tip is pushed into one of the two detent windows that you can see from the ouside. Takes about one minute and looks like it belonged there all along by design.
At this point you cqn adapt your fein to any of the Festool tools for which the 27mm hose is designed.
I have done this but the assembly is a bit long and cumbersome. In the shop I use my turboI and fein hose with my TS75, turboIII with the Kapex, and CT22 with all my other festools. The TS75 and Kapex stay set up with their dedicated vacs. That saves a bit of time. For site work I prefer just to take the turboI and leave the other vacs. if I have to do alot of Kapex work Ill bring the CT22 along as well.