RE: Worst tool ever...
Rajul,
I'll have to disagree with that. I've had some very poorly designed tools that didn't work. A balsa razor plane that after I took it out of the package I found out that it didn't use a single edge razor blade but a poorly harden excuse for steel that was impossible to sharpen. Badly made copies of "Allen" wrenches that stripped when you tried to tighten a set screw with them. Poor fitting screwdrivers, especially phillips blades that weren't ground correctly to fit the screws.
Nowadays I only buy quality read expensive tools. Mostly german.
My two cents.
John