The 4″ Impact Socket 1″ Drive by TIWINTUL is a heavy-duty tool designed for automotive use. With a 6 point design and a deep 6 point CR-MO construction, this socket is built to withstand high impact and provide a secure grip on nuts and bolts. The black oxide finish adds durability and rust resistance, making it a reliable choice for mechanics and automotive professionals. Made in China, this single item socket is a valuable addition to any toolbox, especially for those working with SAE measurements and 1″ drive sizes.