A 9/16 -inch (12 -inch) hollow sleeve, a 360 rotating 1/2 inches (about 1.3 cm) impact category adapter with 1/4 inches (about 1.4 cm of about 1.4 cm) Hexagonal handle and 1/2 inch (about 1.3 cm) impact level socket adapter with 1/4 inches (about 1.4 cm) hexagonal handle. 9/16inch The hollow nut driver is paired with the 360 rotating socket adapter, which not only helps you perform the ceiling tight work, but also allows you to install the nut at multiple angles at multiple angles.The 360 rotation function reduces the burden on the arm. For professional workers, tighten the nuts with hand is painful and laborious.Our hollow sleeve can be used with electric diamonds, quickly tighten the long thread nuts, greatly improving your work efficiency. This set of hollow sockets is made of Metal, which is strong and stable, wear -, and is not easy to break after long -term use. Please note that the hollow socket can accommodate up to about 9/16 inch hexagonal nuts, which is the size of the most suitable for our hollow socket.1/4 hexagonal handle design can be connected to most electric drills, suitable for long threaded poles, bolts or threads. Colour:As Shown Material:Metal Package Contents: 1set x 9/16inch nut driver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.