The phrase "a tool whereby" is correct and usable in written English.
It can be used to describe a means or method through which something is achieved or accomplished.
Example: "The new software serves as a tool whereby users can easily manage their tasks and deadlines."
Alternatives: "a means by which" or "a method through which".
Is it a tool whereby you can publicly broadcast serious terror threats?
Such rules would give Europe "a tool whereby we can impose reciprocity," Mr. de Gucht said.
However, a democratic election can become a tool whereby the richest lobby groups or dynasties buy their way to power.
For instance, the BBC recently offered a tool whereby you could search for a job and find out the probability of it being automated.
For the first time, Angus breeders have a tool whereby they could select for altered fatty acid composition.
The likely use for automated classifiers in (123I FP-CIT imaging, and for other areas of nuclear medicine in the near term, is either as an independent assistant to the radiologist or as a training/audit tool, whereby reporter performance is compared to an independent assessment.
The creation of the floxed Grp78 mouse model provides a valuable tool whereby the function of GRP78, a major molecular chaperone and key rheostat for ER homeostasis, 29 can be examined in the context of mammalian development and in specific adult tissues and organs.
For many years developmental biologists have been using chimaeras as a research tool, whereby cells isolated from one animal are introduced into a different species to assess their differentiation properties.
Multisource feedback (MSF) is an evaluation tool whereby surveys assessing a variety of areas for physicians are administered among medical peers and colleagues [1].
The goal of this work was to provide the researchers with a comparative tool whereby the raw radar data could be examined directly with the surfaces generated from the laser scanner data.
The conceptual model presented in this study may be used as a practical tool, whereby facilities explore, for each category in the model, which factors influence local antibiotic prescribing, and identify which of these are inappropriate.
