Equipment is never an end in itself. The end product of the labours of the tailor is not 'a shoe' because the shoe itself is produced for wearing.
Equipment is grounded in the idea of 'reliability' which keeps gathered within itself all things according to their manner and extent.
Equipment is essentially 'something in-order-to'. In our everyday existence, we encounter equipment of numerous sorts for writing, sewing, working, transportation, measurement, etc.
Equipment is not to be seen in material terms. There is no such thing as a piece of equipment. Equipment only becomes truly visible as equipment through its use.
Equipment is based on reliability which accounts for the repose of equipment resting within itself. Only in this 'reliability' do we discern what equipment in truth is.
Equipment is a totality or a task I am involved in such that the hammer is not a hammer, but something that I use for a purpose. A nail is not a nail, but is something I use for a purpose. . . .To see the hammer as a thing is to stop hammering and look at it..
Equipment is a term that helps make clear that the world is not a spectacle of colors and shapes, but rather an environment in which, say, a podium we may see is first and foremost a podium and not a sheer perception of flat objects and colors constructed in the mind as a podium. Even for a tribal person unfamiliar with podiums, the podium is not a sheer perception, but rather, is simply an object with 'equipmental strangeness'.