i actually have one a piece of junk like this.
Look, i am not trying to start an argument. Those are precision drivers for electronics and MAYBE working in a switch gear cabinet. I don't torque my screws hard but i would kill my hands trying to turn little things repeatedly. and i bought one for 7$$ A precision screwdriver that i thought would work. They turned out to be the biggest piece of crap ever.
Now these are a different story.
eds tips
mip thorp (a little blurry)
these dynamite wrenches are not near as good as mip
this is just my expierience. THis is what works for me. THe O.P. asked about good tools for cheap. Really they are not that expensive. I only use 2.0 and 2.5 and a little less the 1.5 most of the time you can get them for about 10$ a piece or you can save a couple bucks. it's up to you. The whole set of eds tips was 25$ The mip are about 12$ a piece, and if there is better i would like to know.