The reducers with external Morse taper DIN 2185 and internal Morse taper DIN 228 are very important tools because they enable the adaptation of drills, self-tightening chucks, and equipment with Morse taper DIN 228 shanks that have a shank size smaller than the attachment of the machine tool. The use of the reducer eliminates the gap caused by the size difference, making it an essential tool for connecting accessories, drills, and chucks.