I have found this Shop-Vac universal adapter to be extremely handy and have several that I use all the time. I've trimmed some of them down to use with specific tools, but others I left full length. They will fit, or can be made to fit, the dust ports on several of my tools, including my Dewalt DW423 RO sander and Makita 9220 belt sander as well as the coupling on my 1" Porter Cable vac hose. I have one that is trimmed all the way down to the largest cuff and permanently attached to my Makita 2703 table saw dust port and another along with a 2" rubber Fernco connector that is permanently attached to my Delta 28-150 band saw so I can quickly connect my 2-1/2" Ridgid shop vac hose whenever I use them. These adapters are a little expensive for what they are, but have work well for my needs and really do seem to last. Some of mine are probably around ten years old now and have had heavy use, but are still fully functional, so I think they were well worth the expense.