Quote:
Originally Posted by CZroe
I would expect the secondary blades between the main blades would interfere. Drywall bits should be available at any home improvement store and they are reported to work well, so why bother with Pozidriv?
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The corners of Phillips screws seem to have enough clearance that small blade fouling doesn't happen in practice. The plus of the Pozidriv is that the main blades are completely square rather than the flattish end of a curve.
http://www.agcoauto.com/content/imag...comparison.jpg
Drywall bits are a good idea, I'll take a look.