Tube notching, coping, saddling, fitting, and a dozen other terms, are often used to describe a series of cuts to make one tube mate up to another tube without a gap. While there are a dozen terms to describe this process, there are only a few ways to actually create this intersection of metal and doing so with precision can be challenging. Tool manufacturers claim to offer tools that make notching easier or more efficient, and while there are some fantastically simple (and complicated) tools to do the job, they all lack in one department: setup.