Portable drill guides essentially turn a handheld drill/driver into a small drill press. It's a great tool to have if you don't have space for a full-size drill press or if you need to drill angled or repetitive holes when your drill press is either inaccessible or won't work for the application. The Rockler Portable Drill Guide has all of the features of previous drill guides, with the added advantage that it is also built like a tank. You can find the Portable Drill Guide in Rockler stores or