If it comes down to having to use air I have a compressor but its fairly big with a 100ltr tank. I dont fancy having to run it constantly. I wonder if a 280ltr/min magnetic air pump would push enough air to clear the chips away?
The blue flexi connectors can be used for air. We use them on a few of our machines at work for exactly that and also for coolant.
The cutters are boxes of drills and taps. I have loads of them and some are up for sale. Drills are from about 8mm to 23mm morse taper shank and taps are from 5mm to 16mm I think.