I know what you're thinking. Why review a precision bit set? ok maybe you aren't but I AM! First, I was looking for a good quality set with a travel proof box that wouldn't pop open, and some hardened bits that wouldn't bend/break if you even were to look at a stubborn screw. Magnetic was preferable so I wouldn't be loosing the screws that are so tiny I can't see them if they fell onto the floor. This set does NOT disappoint! Not only in a hard aluminum case that is difficult to accidentally open, but every bit stays put in it's place and is almost difficult to release unless you use the handle to prop up one end to grab the other. That is fine with me as long as they don't fall out on their own. You can even turn this set over upside down and nothing falls out! Plus they fit everything I have tried perfectly. No loose wobbly phillips 000 here! These are SO worth the money and I have put them in my home office/bench as my goto set.