[klondike98]

Here's a service tip from Chucks site:  

http://www.philcorepairbench.com/tips/svctip46.htm

There are some pics in that 60MB post of the round can type being stuffed.  I have used a hacksaw blade to open, but I get a neater cut with a box cutter blade.  I place the blade on the can with a little pressure and roll the can back and forth working my way around the can.  As with a pipe cutter, you go slow making the cut in the can a little deeper each rotation.