oh and troll is smaller - 3.2mm from memory
but that acutually works out better cos you can easily fit the beads over it - also it has a different catch system so the end is the same size as the chain - pandoras the catch is slightly bigger than the chain
ETA: when you use the impress bead corer be carefull because as you flare the tubing the inside dimention of the tube can get smaller if you've left too much excess on the ends - ask me how i know
