Rogan

Wonderful tool with a large number of functions and opportunities through tip changer and attaches pocket.
The 4 main tools are great (lime, knives Saw). For the tool changer I advise you to quickly have the bit holder or you build one to put universal tips. This will multiply the number of possibilities of your tool at very little cost. It will tighten loosen almost anything.
I have 2 small downside:
It's weird to explain but I am more afraid of corrosion on him on my Swiss army knife even if it has no rust. So I use occasionally some WD40.
No corkscrew or punch for wood, it's a shame but hey US should drink less than us.
As soon as you use it to mechanical or troubleshooting excels.