This 2pc adapter set is a must-have for any mechanic or DIY enthusiast. The set includes two pieces, both with a 3/4″ drive size. One adapter has a 3/4″ female thread and a 1″ male thread, while the other has a 3/4″ female thread and a 1/2″ male thread. These adapters allow for easy conversion of socket sizes and are designed to fit standard SAE and specialty measurements. The set is new and comes with a manufacturer part number of A2PC. It is a set item and includes both adapters. The tools included in this set are perfect for any automotive project.