I've given it high marks for durability, but to be honest I won't be using it enough for quite a while to pinpoint that. Although it looks pretty solid. The measured values are easy to read. It comes in a nice little case that doubles as a protective case when not in use. As a DIY enthusiast, I doubt I'll ever use it to its full potential, but the way I see it, this looks like a solid drill bit to have in your toolbox if you're looking to drill a specific diameter hole. .