"Toller" wrote in message
...
I just bought a used set of socket wrenchs. It has both 6 and 12 point
sockets. Why?


I am guessing that 6 is stronger and 12 can be used on square heads, but
neither of those seem to justify having both. Is there a better reason?



Square heads are eight or four point

Six point sockets don't slip as easily as 12, and there are 12 point bolts.
Mostly you use 12 point sockets on regular hex bolts and nuts with no
problems. Some 12 point sockets like Utica Loc-Rite's and others use rounded
points to make them harder to slip.

Al