Broxy:
It is a good deal value wise but faced with a tough screw these will just cam-out and damage the driver and screw.
Voted hot purely for value.
Agree with the first part but not with the second. They look like a total waste of 37p, plus the time you'll waste trying to use them only to find they might as well be made of crushed silver foil.
I haven't tried these of course... it's just that I spent the weekend at my dad's house trying to fix things with his tools, and the screwdrivers he had looked very much like this - utter rubbish.
Might be good for stabbing someone perhaps. Mostly likely yourself when the shaft breaks or something.
Crap that costs 37p is not good value by any definition.