This is the screwdriver I use on most, it is not small, with a big tip, a real beauty of an old tool

I tighten my QR down tightly and they don't move, in field or studio I have never needed to tighten a QR. Some can take 2 bolts.

I have yet to break a camera screw, 1/4-20 or 3/8-16 and I try. I used to test bolts to failure on a huge machine.

https://www.almabolt.com/pages/catal...oadtensile.htm

Shot this 2-1 8X10 Macro of my favorite screwdriver last night. Blade is original and unmarred, the wood handle has a steel cap that is very dented by somebody pounding on it. Not me.

1 by TIN CAN COLLEGE, on Flickr