Clamping unit of power tool, comprising attachment for coolant designed in cylindrical shape with wider contact area

摘要

A shaft (8) axially moved by an electric drive (12) is accommodated in the center of the chucks (2). A stick-shaped extension (14) at its outer end can be inserted into the fluid duct (16) of a coolant conveying attachment (18). The extension (14) exceeds the surface of the chucks (2) facilitating an easy joining of the attachment (18) provided with a sealing element at its upper surface (20). A cylindrical cover is pushed over the arrangement and the tool inserted into its central bore.