"Here's another tool I use when doing millwright work. Many times the nut and bolt that needs to be tightened is in a place where there is no room for normal lengthed wrenches. These stubby wrenches fit the bill perfectly. They are well made to close tolerances and nicely finished to fit your hand well.
If you do work in confined spaces this will be a good addition to your tool collection and will pay for themselves in one job."
What is your level of technical expertise? Professional