The Eclipse bleeders are designed much like the Magnus heads in function, I'm sure you knew that but the similarities end there. The Eclipse bleeders are a little smaller (better flight and penetration) and are made from stainless steel, they're razor sharp right out of the pack too.
I usually put a little extra Ferr-L-Tite on the end of my taper or adapter and lock them in from the inside, a little heat will take them right back out. You've got to do it from the inside, because the Ferr-L-Tite will not stick to the exterior teflon coating.