A ‘tool kit’ is usually offered as an option when purchasing a wheel chair especially modern lightweights, folding, sports models or any with easily detachable parts.
In retrospect that is probably a wise add-on. Operating out of your home you most likely have a variety of tool options lying around. However in a care facility or on an outing a simple adjustment through a potential safety adjustment can get very complicated due to the lack of a tool.
Manufacturer tool kits are specific to your wheel chair model needs and compactly packaged for storage and transportation WITH the chair. … Tools in a drawer or closet don’t do you any good <grin>
You live and learn and pass along the knowledge.