I meant to post this in my workbench re-tool blog, but I never took all the picture needed to finish that. Oh well. This is a nice way to make the handle that comes stock with a Lee Valley vise a whole lot better.
1. Get rid of the square head screw that it comes with. It looks cool, but needs to be tightened with some regularity and my square head screwdriver is never around when this needs to happen. Also, since it rides above the surface of the head there are situations when it can mar your work. Use a regular Phillips wood screw and counter-bore the thing.
2. Add an O-ring to the handle. It add a nice buffer so the head does not come loose all the time.
That’s it. A few parts you already have on hand and about five minutes of time and you will have a much improved vise.
-- Make furniture that lasts as long as the tree - Ryan