6 point wrenches

[xroad]

You're right; your good experience with the C-man spline wrench might be a bad experience for another person. The tool's usefulness is largely dependant on how narrow the tolerance margins are set at the manufacturer.

Then there is the 3 pieces of Nepros 6 point double box wrenches. I am loving them. Tight fit to fasteners. Very smooth finish. Not sure if I should just hang it on the wall and not use it. AND, they are shiny! Shiny thing makes me go into a trance

 

[superautobacs]

Yup, I think Nepros tools has the best chrome finish in that country today. It rivals the Taiwanese stuff very closely, if not better.

 

[njfl]

The purpose was to see which type of socket design was capable of engaging the most rounded fastener.

I wonder if the experiment has a flaw. Consider that when a fastener is rounded in practice the metal is still on the bolt, but it is pushed to a new location. In this experiment it appears as if they used a lathe to completely remove the metal so certainly there is nothing to grab onto by any of the fasteners in the extreme cases.

 

[superautobacs]

njfl,

Certainly, a valid point you have there.
In reality you'd never find a fastener that's "rounded" as smooth as those test subjects were put through.