Originally Posted by
666pack
are you serious?
you're confused between what a masterlink is and what a chain tool does.
just go to your lbs. you probably shouldn't be tinkering with your chain.
i agree. read
this page. it gives good general info on how chains work, and tells you the different types of chains, etc.
once you understand that, you'll probably have a better understanding of how a chain tool is supposed to work.
it doesn't hurt to have someone show you the basics though. after you read, stop by the bike shop (or better yet, a bike coop, if you have one in arlington) and ask em how to properly break and rejoin a chain.
it's pretty simple. good luck.