4-in-1 Square Impact Socket, NRHD4. Single-ended impact socket with hands free adjustment between socket sizes. Two coaxial spring-loaded sockets in one tool. Includes 3/4-Inch, 13/16-Inch, 1-Inch and 1-1/8-Inch square socket sizes plus a 7/16-Inch hex quick-change adapter. Works on 1/2-Inch, 5/8-Inch and 3/4-Inch pole hardware. 13/16-Inch diameter, 6-Inch (152 mm) long hollow shaft allows use on long threaded bolts.
