I wanted to continue to use a Rigid Precision vacuum cleaner hose with a Milwaukee Battery Powered vacuum (Model 0932-20). Other Milwaukee Vacuums use this same inlet/attachment style, just not sure what ones. Also, I think Milwaukee uses this same attachment fitting in their other similar style battery powered vacuum heads even those that use the smaller hose. (Not an expert in Milwaukee vacuums, just made somethig I needed and others may find useful.)
A simple Fusion 360 model made this possible. The Fusion file should make this an easy task to make it fit other vacuums or hoses.