This Ryobi D551H Hammer Drill is a powerful tool that has been tested and comes with a chuck key, handle, bits, and manual in a convenient hard plastic carry case. With variable speed double insulated, and a 1/2" bit size, it is perfect for all your drilling needs. The drill is made by Ryobi, a trusted brand in the industry, and was manufactured in China. It has not been modified in any way and is sold as-is. This hammer drill is perfect for use in the business and industrial sectors, as well as for light equipment and tool projects. It falls under the category of hammer drills and is a great addition to any collection.