On Thu, 21 Aug 2008 10:13:02 +0100, wrote:

The one with the marks at 45deg to the main X. Compare them, it's then
obvious.

I'm talking bits/driver not heads... Though I guess you can peer onto the
end of the bit/driver to see the fillet in the corner of the driver but
that isn't necessary.

--
Cheers
Dave.