A bit too expensive for now. Maybe in a month or two.. but then I need another 3D printer, and I am sniffing around a milling machine ..
BTW I have gas - well I have 5 argon cylinders, and I can put some CO2 into an empty cylinder and then top it up with argon.
(yes they are proper refillable in-date cylinders)
(apart from one which is about a year out of in date but I only fill it to about 200 bar bar and it is a 300 bar cylinder. I could get it tested as it is in great condition, but there is no legal requirement to do so as it is for my private use only.)
No, I never found a source of reasonably-priced stub drill sets. Jobbers aplenty, but no stubbies.