Naro,

the bit I used was the one that came supplied with my fathers security plates for locks shipment. At WidgetSupplu link when you look at sets BCU06 and BCU13 you will see that they have a hole inside to accomodate the pin that wave has. When I get some time I will go to local Home Depot and see what they have in terms of similar items but it won't be for the next two weeks since EMT exams are really catching up with me.

Matt