It's really good quality. Few diamonds had imperfections and kit was well made. I use a lot of my own tools, would reccomend getting a larger tray and more ergonomic tools. My biggest complaint is the symbols. Since this is a round drill it's very easy for them to be misplaced or slide slightly to reveal the symbol underneath. I found myself frequently pushing diamonds back into place to avoid revealing the white symbol underneath a dark drill or vice versa. For such a dark piece this really could have used smaller symbols or ones that matched the color a bit better.