Rotation tool for cleaning pipeline, has coupling piece connected with rotation spiral such that end of rotation spiral is directly attached to cutting head or extends into recess, where cutting head comprises central part and cutting ribs

摘要

The tool has a ball-shaped cutting head (1) comprising a central part (2) and six cutting ribs (3) that radially project from the central part, where the tool is inserted into a pipeline by the cutting head. The central part is provided with a recess (9) for holding a coupling piece (21). The coupling piece is connected with a rotation spiral (20) such that an end of the rotation spiral is directly attached to the cutting head or extends into the recess. The coupling piece extends rearwardly, and is rigidly connected with the cutting head. The recess is formed as a square hole, a transverse groove or a drilling.