The DeWalt Black & Decker 323091-01 Cord Protector is a replacement rubber strain-relief sleeve for selected DeWalt, Black & Decker and Berner rotary, demolition and chipping hammers. It fits where the mains power cord enters the tool housing, helping protect the cable and internal wires from damage caused by bending, pulling and repeated movement, and is suitable for replacing a worn, split, damaged or missing original cord protector.