Originally Posted by
Elizabeth Greene
They wouldn't use the "jetpack", they'd just push off to grab it.
They wouldn't do that though, first the tether that keeps them on the worksite is pretty short to keep them within range of useful hand and foot holds. That would prevent them from going any appreciable distance. Second, they still wouldn't do it even if they only had the 50' safety tether on. Why? I mean why besides the possibility that the tether would fail and the whole world would watch as the first astronaut dies on orbit over a lost set of wrenches? The ISS has a bunch of sharp, pointy, hot, and fragile things that would damage or be damaged by an Astronaut and spacesuit. If you listen to EVA audio every transit across the station is carefully planned and has a bunch of "don't touch" and "be aware of" cautions about thing x being fragile and the thing next to it being too hot to touch even through the suit gloves. Careening into the wrong thing could end the ISS mission permanently.
Popping off to grab the kit with the Soyuz or Crew Dragon won't work either; Even if it only took 10 or 20 minutes to depart the station (which would be *very* fast and probably damage the ISS) the kit could easily be more than a kilometer away and neither capsule has an airlock to allow an EVA to grab it.