I snagged this for a few bucks off of eBay. I was impressed with the tiny blade, it came extremely sharp. The tool looks lightly used, but both of the drivers very easily popped back into the handle, and did not stay in the locked position when any force was applied. I popped the plastic cover off the drivers, and then the front metal clip I also popped off. I removed both drivers and then used a dremel cutting wheel and a small file to reshape the lock part of the driver so that it would have more bite against the springs. And that worked 100%! The drivers can take a fair bit of force and I haven't had them close on me yet.
The drivers are micro sized, and really useful for electronics and small things. The scissors are Fiskars scissors, and though they don't lock open in any way they work just as well as the scissors in any mp400 or mp600. (In fact they appear to be identical except for the length of the arm). Overall I very much like this tool, and I'm going to have to find a keychain for it to live on!
Charles.