The_Inspector
Well-known member
Inbus makes the hex keys for HazetIt probably has more to do with the loser fit on the fastener than the actual metal flexing, but I perceive a flexing-sensation whenever I use the 4mm and smaller PB Swiss keys vs other brands.
Wera has a round shaft, and is thicker, so they should be stiffer, but my Hazet keys are the same design as PB Swiss and they have a more positive feel to them.
The method of how they bend the key into it's L shape could be different, as well, and play into the differences in flexibility












