Just throwing this out there since there may be some who aren't aware of the differences between Pozidriv and Phillips screwdrivers - or even the existnce of Pozidriv. Heck, I didn't know 'til a few months ago, even though I'd seen those funny looking Phillips-type screw heads for years. Check out the graphics of various screw heads at the link below.
http://en.wikipedia.org/wiki/Pozidriv
Phillips drivers have an intentional angle on the flanks and rounded corners so they will cam out of the slot before a power tool will twist off the screw head. The Pozidriv screws and drivers have straight sided flanks.
I've been doing a project building panels with contactors and MCPs and they all have Pozidriv screws. After getting the correct tool I can say there is a definite difference - you can really crank those babies. Which is good, since those components come with torque specs. which would be very difficult to meet using a Phillips driver - in the range of 20-28 lb-in for some of the main terminals.
If you do any work with these fasteners, it'll pay to get the right tools. Most any big tool maker will carry them.
http://en.wikipedia.org/wiki/Pozidriv
Phillips drivers have an intentional angle on the flanks and rounded corners so they will cam out of the slot before a power tool will twist off the screw head. The Pozidriv screws and drivers have straight sided flanks.
I've been doing a project building panels with contactors and MCPs and they all have Pozidriv screws. After getting the correct tool I can say there is a definite difference - you can really crank those babies. Which is good, since those components come with torque specs. which would be very difficult to meet using a Phillips driver - in the range of 20-28 lb-in for some of the main terminals.
If you do any work with these fasteners, it'll pay to get the right tools. Most any big tool maker will carry them.
