Quote:
Originally Posted by NCBeagle
I am not familiar with the term "hollow-ground," so the only thing I know to do is look at the box. It doesn't say anything about hollow-ground. Hope this helps.
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Instead of the sides contact the screw being tapered like a chisel, they are ground so that they are parallel to each other towards the tip. This way you get move contact service on the screw which help to reduce the chance of the screwdriver slipping and marring the screw.