Klein Tools' Socket Set features the 6-in-1 Square Impact Socket (Cat. No. NRHD4) and the 2-in-1 Slotted Impact Socket Set, 6-Piece (Cat. No. 66090). The versatile 6-in-1 Square Impact Socket features four square socket sizes: 3/4-Inch, 13/16-Inch, 1-Inch, 1-1/8-Inch and 2 alignment slots that can b