Thanks, Dustin, and others. I didn't mean to mislead ..... I have many on my workbench as well, and have long understood the necessity of perfectly fitting them to the screw being removed/replaced. I was being a bit facetious about these fancy nancy turnscrews that came with this set. Not quite what I am used to.

While we're at it, is it true that all better English guns have screws with tapered slots? I'm not being facetious about this. My only English gun is a Hollis and I've never needed to disassemble it, except for removing the barrels.