Nipple Wrench Question

[Slowhand Bob]

I started out with one of the ones that looks like an L shape with a screwdriver on the long leg end.  Perhaps this was an orriginal Colt design??  As it came it would not fit the small Remington recess but I got a friend to chuck it up in a lathe and give it a bit of relief.  He did claim that the little tool was harder than a cheep file, which was what he used!  Definitely would be a good way to lose a finger for the careless individual!!!   

[Thai Fighter]

Craftsman socket may be a tad expensive but still cheap compared to the stuff I've got in my box at work "Auto Tech/Mech by Trade" so I didn't sweat it but so much.

http://www.sears.com/shc/s/p_10153_12605_00943501000P?vName=Tools&keyword=5mm+socket

Last time I check $1.99 cheaper than any of the commercially marketed nipple wrenches...