Well, this might not be as cool as Procop's new lathe, but still will be helpful.
I typically roll one of my bikes out of the garage and give it a pre-ride checkover which of course includes tire air pressure. And if not ridden for a couple weeks, will typically need a bit of air. I do have an air compressor in the garage, but I have to wait for it to build pressure, pull out the 50 foot hose and then neatly roll it back up before my ride [I know, first world problem!].
Well, I just bought this portable air compressor, thought about getting one for some time, but seems a lot of them were 12V and hooked up to a cars cig lighter, not going to happen on any of my bikes!
I was ordering a couple car parts from Summit Racing and happened upon this one. The thing that sold me is it has 3 power options: 20V battery, 12V DC and 120V AC. Pretty simple operation, turn it on, set desired pressure, connect to valve stem, push on button and it automatically pumps to that pressure and shuts off. I like it...