Using this to attach my ridgid shopvac(standard hose) to a bosch planer.  I don't see a spec of dust when planing while I have this hooked up. It's a thing of beauty.  Planers really kick out the shavings and dust and this little beauty fits on snug and solid to my planer, preventing anything from flying loose.  The hose has stayed attached through several boards being planed in a row.  Just be prepared to empty your shop vac sooner than expected.