A pair of forceps can be used to replace small parts, in a small space.
Because they lock closed you don't have to worry about dropping the part
until you are ready. This can eliminate or minimize the need for
disassembling part of your machine. For example, I was able to replace a
small spring on the center drop target in a set of 3 in about 10 minutes.
My experience and skill are limited, so I probably saved myself several