Hi first off, I like to say this forum is awesome!
Scroll down to the bold if you only want to read the questions.

I currently have this problem, Im assemblying my first low budget racer and I bought a frame over a danish site similar to Ebay. It had already a bottom bracket attached which I thought would work and not be a problem for me but O am I wrong sometimes

This is the BB in question: http://www.ebay.com.au/itm/Vintage-K...-/200611637235

Now I can get the rippled screw thing (Im sure there is a better word for that I dont know) off with my bicycle tool, after some human power, sinse it was a little rusty. But the other part seem to be a harder work after 2 hours of screwing, it just didnt want to get loose.

Here is my questions:
1. Is there somekind of Drill to a machine I can use instead of the short pretty bad tool I have, and in case there is, where do I find it?
2. When I get it off, cause im sure I will at some point, which under 50$ BB do I change it with? Its called "Kajita 1,37x24T" as you can see in the link above

The BB world seem like abit of jungle to me, to be honest. So many measures, allmost every company using its own. Its the hardest part of building your own Bicycle I find