Features: 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" adapter & 1/4'' to 3/8" adapter.,Each adapter is 12-point, which allows for fine indexing, saving woring time and acesses higher enficient. The length of the adapter from the square drive center to the center of the adapter opening is 2inches. These extension rod provide additional extension and the ability to access fasteners in hard to reach space. Our 12 point torque adapter tool is crafted from steel and have undergone surfaces polishing treatments to enhances corrosion resistance. The 12 o'clock box end torque adapter extension kit is suitable for various automotive applications. Whether working in a crowded engine compartment, handling suspension components, or attempting to loosen or corrode fasteners, these adapters can provide solution. You will receive a 3/8inch drive set of 10 SAE torque adapters with a box for easy transportation, safe storage, and quick organization; Each compartment and its corresponding parts permanently with SAE dimension for easy identification. Specifications: Material: Metal Package Includes: 12Pcs Torque Wrench Extension Adapter note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.