This 55-piece set is designed for professional use and is compatible with electric wrenches, impact wrenches, ratchet wrenches, rod benders, and various other tools. Comprehensive Set: This toolkit features 11 SAE deep sockets and 11 SAE shallow sockets in the following sizes: 5/32″, 3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, and 9/16″.