On Thu, 19 Jan 2012 03:36:25 +0000 (UTC), (Edward A.
Falk) wrote:

In article ,
woodchuck wrote:

Or -- has square drive just become obsolete? Do I need to get out
more?

Au contraire; square drive is the future, IMHO.

Fun trivia fact: the Phillips head is *designed* to cam out when you
tighten them. It's to keep you from over-torquing them.

I'd like someone to come up with a CREDIBLE cite on that.
It appears to fall into the "urban legend" realm.

I get mine from McFeely's, but they're expensive. Local contractor's
lumber yard also carries them, but in limited sizes.