I went to Lee Valley the other day and bought two adapters, a 1.25" to 2.5" and a 2.5" to 4". My goal was to see if I could hook my randon orbital sander up to my dust collector. When I took the dust collection bag off the sander to attach the smaller adapter, I noticed the 1.25" end had a "ring" running around the outside about an 1/8" of the way from the end. This prevents the adapter from going into the dust collection output of the sander far enough to make an adequate connection. So, before I remove that "ring" in some manner, has anyone else attempted to connect their ROS to a dust collection system? If so, how did you accomplish it? I'm thinking I might have to go buy a short section of 1.25" or so connect the sander to the adapter.
TIA.