Mixing tool for dry mixing and coating

A tool for dry mixing and coating of powder mixtures, comprising:

• a fixing shaft having a fixing shaft axis;
• and
• an approximately disc-shaped element fixed to the fixing shaft, the disc-shaped element having a diameter d, an upper surface, a lower surface and a peripheral surface connecting the upper and lower surfaces,
• wherein the disc-shaped element has a plurality of grooves extending parallel to the fixing shaft axis, wherein each groove has two groove walls extending a length from the peripheral surface to a groove bottom,
• wherein a tooth is formed between two grooves,
• wherein the disc-shaped element is formed of a base body and at least one wear element fixed to the base body,
• wherein at least one portion of each groove wall, that adjoins the peripheral surface, includes the at least one wear element fitted to the base body,
• wherein the lower surface has a whirling-up element which projects beyond the lower surface,
• wherein the whirling-up element is arranged on the disc-shaped element closer to the fixing shaft axis than the groove bottom is to the fixing shaft axis,
• wherein the whirling-up element is adjustable in length to be reciprocated between two positions, and
• wherein the whirling-up element projects beyond the lower surface less in the first position than in the second position.