I like the grinding workshop, the vacuum cleaner is not connected to it. 3 1/8" grinding wheels are hard to find although I haven't searched much. Buying online comes with shipping. Don't buy made in China, they're 3" and don't work well, they're called mounts, you said they hadn't checked. The tool feels good in the hand, I just wish a shop vacuum could connect. Very good for flat or curved projects, I recommend a grinder that is built to last.