7mm to 19mm socket universal drill set

This gadget is mighty handy when you are doing a job where you have to keep switching sizes of sockets.  I recently took apart a bed, and they had 3 different sizes of bolts in the one frame.  This socket made it possible to losen them all without having to keep changing the socket size.  I was pretty excited.  You need to keep a firm grip on the socket handle and apply pressure enough to keep it from slipping, but that wasn't bad at all.  Not for the convience of not having to keep switching the sockets or looking for the right size.  I need like four of these for my car,  my garage, my office and my toolbox.