Park Tool CN-10 Professional Cable and Housing Cutter
If you, as do I, have several bicycles around the house and the garage and have come to the realization that you'd much rather perform your own normal maintenance out in the garage than go without your bike for a week, one of the critical tools you're going to need in your bike maintenance arsenal is a cable and housing cutter. Don’t be like me: the first few times I replaced a shift cable, I dug my ordinary wire cutters out of my toolbox. The result was a nightmare threading the cables through the housings and fitting a ferrule on the cut end. I've even tried using a dab of solder to “silver” the end of the cable.
