ORIGINAL: sideshow
Sean's right on with his suggestions. Don't try to save $10 on a multi $K jet.
I bought the BVM aeropoxy kit and got in with Kevin when he bought 1 million tubes of Hysol for everybody (I like the grey 9640F better). Art's has a [link=http://www.arts-hobby.com/store/aboutitem.cfm?itemid=102&compid=1]starter kit[/link] for $40. The tips can be reused. Just pull the mixing helix out with pliers and put the tip and the helix into acetone. It will break down the epoxy and be ready for use the next time.
LOL, I had just heard about this tip a few weeks ago. I decided to try it but the way I remembered it was sticking the tip in acetone and then later pull the mixer out. Three completely busted mixers later I figured you must pull the mixer "BEFORE" you stick it in the acetone.
I tell you, someday I'm gonna write a book "the idiots guide to living as an idiot"