3-1/2" flexible metal conduit pulling tools screw on the exterior of MC cable and 3-1/2” flexible metal conduits and provide a loop to easily pull cables through the walls and ceilings. Garvin industries’ flexible metal conduit pulling tools grab flexible metal conduits and easily glide through hollow and insulated walls and ceilings. The spring steel construction tightly grabs the flexible metal conduit without damaging the raceway.