The Sandvik reaming heads are equipped with a base unit with different components fastened to it. The set, number, blend and layout of all the existing components can be easily modifies as the needs of a particular application. The basic design of small reamers is the essential part of its foundation, whereas the larger units are in-built, compartmentalized and can be expanded to different volumes. This results in a dynamic, easy to carry and recyclable set of reamers that reduce the overall cost of investment.