Do Master Link pliers help with SS / fixie chain assembly?
If you're looking for a way to get the chain off without loosening the wheel then this won't help you. This tool require there to be enough slack in the chain to pull two links together. I'd say the links move about 5mm in order to break the link. I would recommend having this much slack in the chain normally.

What you want is a 3 piece master link that uses a c-clip to hold it together. These don't require any slack in the chain to disassemble. They seem to be more common for 1/8" chains though.