>
>
> Now we need the R&P added. :-)
>
R&P tapers to a sharp point and at a steeper angle. More like a pyramid
or equilateral triangle. Has perhaps the best resistance to cam-out of
the + family of drivers. It is a traditional favorite of boat builders
around here who use a brace to install them. It is best adapted to soft
headed screws such as silicon bronze. I'll get a picture next time i get
out the 50/2
mike
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