Today I used the best set of hex head wrenches ever. Click here for a description. They were a brand from Germany called Wiha but the feature that set them apart from anything I have ever seen was called MagicRing, basically it was machined so you could not drop a screw. Visit the url where is says "Click here for description" to learn more.
Also while I have this thread started, for standard bicycle repairs and maintenance would I need any other sized than the following: 1.5, 2.0, 2.5, 3.0, 4.0, 5.0 6.0, 8.0, 10 ? Thanks