The 12 o'clock box end torque adapter expansion set is suitable for a variety of automotive applications. Whether you are working in a crowded engine compartment, handling suspension components, or trying to loosen or corrode fasteners, these adapters can provide a solution The 12 point torque adapter tool is made from steel and has been polished to the surface to enhance corrosion resistance The length of the adapter from the center of the square drive to the center of the opening of the adapter. These expansion rods provide additional expansion and the ability to access zippers in hard to reach spaces You will receive a 3/8" drive set of 10 torque adapters with a box for easy transportation, safe storage, and quick organization. Each compartment and its corresponding parts will be permanently sized for easy identification 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 1/2", 1/2" to 3/8" adapters & 1/4" to 3/8" adapters. Excitement, Manufacturer: Psdndeww