Good grief - do they still make those?! I've had mine for decades and I swear it's the same colour tin box too. Take care, as they can operate either clockwise or counter-clockwise, depending on how they are set - ya don't want to tighten a screw up with one when you mean to remove it!

 

Mine's around 40 years old. When the original patent ran out, everyone must have copied it. Even the box it comes in... Worth every penny I paid for it - which was a lot less back then.

 

I had to go and check - my tin's the same colour blue as yours!

 

They copied the paint, too!