Thanks, I think thats roughly what I thought. If I can get the Hyundai for a low enough price it will probably make a good starter extractor in any case. Will be interesting to see how much flow it can achieve with a larger orifice.
Hey - so I am just looking at potential options for a workshop extraction system.
You can get pretty good deals on second hand or graded vacuums like the Hyundai HYVI10030 - I am aware this will likely be fine for most tools in a home workshop, but may struggle with big chips off of something...