Eafengrow D2 w/ G10 -truly hate the name (Ethan Gross) and the EF logo but for $20 shipped...
All my other (name brand) knives pale in comparison when it comes to plain old utility -this ugly duck is by far the best working blade I've ever used. Smooth ball bearing flipper that always feels within my full grip. Besides being a great cutter it's also a pry bar, bucket opener, chisel /gouge, door opener, band cutter, sheetmetal scoring, etc. After a couple years I finally broke about 3/8" off the tip so I reprofiled it -is quickly sharpened using an arc tube from a high pressure sodium lamp.