The 5-in-1 Mini Impact Socket includes three square socket sizes - 3/4-Inch, 1-Inch and 1-1/8-Inch - as well as small and large alignment slots. These slots allow for easy tightening and loosening of most pole hardware, including pole steps, drive hooks, eye bolts, and J-hooks. The socket has a 13/16-Inch diameter, and its compact, hollow shaft (measuring 4-1/2-Inch or 11.4 cm) assists linemen in reaching around poles. The socket also comes with a 7/16-Inch hex quick-change adapter, which reduces weight and improves ease of use for utility workers. Additionally, the fine-tuned ball tip provides improved retention, minimizing drops. The socket is impact rated and color-coded with double lines to identify its slotted feature, and a single line for its socket size. A replacement adapter (Cat. No. NRHDA)