Well, I've only posted the 400 DPI images of the blade rather than the whole screwdriver since those are far too large to stick up here (Hell, these little images weigh in at 1/2 Meg already.
In order to see the shape detail of the blade, you may have to increase your monitor brightness somewhat. As for the actual texturing detail, I'd settle for mainly doing this through specularity andbump over a standard chrome finish. You can kind of achieve the texture via a slight turbulence elongated along the blade for the microbumps, and possibly a striped texture map in them around the shaft for the actual machining detail, although I'll admit that the one I modelled only had a chrome texture slapped on there and looked OK.
I've also got a TIF of the text at a high resolution that I can also post for you.