http://www.peachparts.com/shopforum/diesel-discussion/321723-new-slot-nut-tool.html
With the tool bolted into the wheel nut real pressure can be applied and this is just one thing to forget about. It won't slip out and ruin the tool or nut.
I used a 2"x"x8' in two wheel bolts and the jack handle on a 3/4" ratchet.
All went well with a gauge mounted on the brake backing plate.