Originally Posted by Harold46
Those are actually driver bits for square recess (Robertson) screws. A #2 square bit is less than 1/8 inch across, so wouldn't make a very big square hole if used in a hammer drill with rotation turned off. But if a guy made a similar tool in the right size, that would make swageing or broaching a square hole a piece of cake.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.