Abstract: A plastic housing has a front shell with inwardly protruding bristles of an exterior wire brush, and a rear shell which retractably receives the outwardly protruding bristles of an interior wire brush. The interior brush is mounted to a shaft which engages the housing, and which is driven by a motor, such as by a power drill. A ring-like deburring element is mounted to the shell between the front shell and the rear shell, and has an inwardly and frontwardly protruding generally frustoconical first wall forming a deburring element which defines a central opening through which the interior brush may be projected and retracted. The first wall may be planar segments, or may have a circular cross section. The deburring element serves to position a pipe for burnishing by the exterior brush, and also deburrs the end of the inserted pipe.

Abstract: A plastic housing has a front shell with inwardly protruding bristles of an exterior wire brush, and a rear shell which retractably receives the outwardly protruding bristles of an interior wire brush. The interior brush is mounted to a shaft which engages the housing, and which is driven by a motor, such as by a power drill. A ring-like deburring element is mounted to the shell between the front shell and the rear shell, and has an inwardly and frontwardly protruding generally frustoconical first wall forming a deburring element which defines a central opening through which the interior brush may be projected and retracted. The first wall may be planar segments, or may have a circular cross section. The deburring element serves to position a pipe for burnishing by the exterior brush, and also deburrs the end of the inserted pipe.