Bought for model building and very satisfied. It's nicely finished and looks solidly built. The biggest plus for me is that the drill chuck closes very tightly and holds the drill precisely. So often the mini-chucks either don't fit snugly enough to accommodate a very small drill, or the jaws don't close evenly, causing the drill to wobble. It is advertised as closing to 0.34mm. I don't have a bit that small, but it worked great with a 0.5mm bit with minimal wobble. A few small suggestions for improvement: - The cable could be longer. If your outlet is at floor level, you likely need an extension cord. The design is pretty simple - just a 1 5/8 inch diameter cylinder so not very ergonomic. It would be nice if it was a variable speed tool. A single speed setting works for me, but I see that for some applications the ability to change the speed would be useful. It's an old-fashioned chuck with a key. the key to the string to hold it all together. All of this will likely add up to a very reasonable price though, so the current design offers value for what you're paying for it.