On 7/18/2011 9:32 AM, N8N wrote:
On Jul 18, 9:16 am, Jim wrote:
zzz wrote innews
On Sun, 17 Jul 2011 18:05:14 -0500, Jim
wrote:
Phillips screws main problem is camout.

Since they were designed to cam out (here we go again), that's not
surprising.

Do you REALLY believe Phillips was "designed" to camout?
what gave you that idea?

I don't know whether it's really true or not, but that seems to be the
accepted story.

From http://en.wikipedia.org/wiki/Phillip...river#Phillips

Maybe. But the patent
http://www.google.com/patents?id=MIN...page&q&f=false
which is reference by the wiki article doesn't claim the "cam out" feature.

The biggest single "consumer" of Philips screws and bits is the
"drywall" industry. Many of these drivers seem to use "cam out" to
control penetration.