Black&Decker BDCHD18KB cordless hammer drill, 18 V, 2 x 1.5Ah batteries Drills are available in various versions, so choosing the right one for your application is essential. A drill is best suited for fastening or drilling applications in various, less hard materials, while hammer drills can be used for chiseling in masonry or brick. An SDS Plus hammer drill is necessary for professional applications, such as chiseling or screwing/drilling in hard materials. For ease of use, cordless drills are the solution, and for handling hard materials, corded drills have the power needed to tackle tasks quickly and easily.