The law governing the suitability of the tool that you can find for a job is not the same as the tool that you need for the job, is related to another law that dictates that the last nut you need to slacken off in the most difficult place to access, is rusted solid.
These laws were first established by that obscure Victorian steam age engineer, Septimus Onesimus Dickinson, and have been known ever since as "S.O.D's Laws."