Worked Hard Daily
I'm an engineer. Not one of those paper pushing, tie wearing engineers, but the sweat dripping, bolt cranking, get it done at any cost engineers. When my company needs a hard-to-fix problem solved they send me and when I have a hard-to-fix problem to solve I reach for my Skeletool CX.
I preordered it before it was readily available and it's been clipped to my pocket since the day it showed up. It's the tool that is light and unnoticeable in your pocket and shows up big when the job needs it. It's outlived the skin on my knuckles many times over and I hope it lasts forever.
With a 154CM stainless steel blade, pliers, bit driver, pocket clip, and carabiner/bottle opener, you're set.