The stud is a type of fastening material that is widely used in the manufacture of new elements, as well as in repairs and renovations. In its essence, it is a cylindrical element, and its various modifications in terms of size and shape, we know several types of studs. The combi has, so to speak, a double body, which allows two varieties of its use - depending on the purpose of your work and also on the tool you use to do it.