Many woodworking power tools include a nozzle which allow you to connect the tool to a shop vacuum. Oftentimes, however, the power tool nozzle is not the same size as the vacuum hose nozzle. I can usually solve the problem by cutting a short length of old bicycle inner tube and stretching it over the two mating nozzles. I’ve found it provides a good connection with no loss of vacuum, and it’s relatively easy to disconnect when necessary. My local bike repair shop was happy to give me a few old inner tubes (in four different sizes) for free.
– George Swisher