The Teng Tools Deep Impact Sockets are specifically designed for use with power tools and air tools. They are manufactured from chrome molybdenum steel in accordance with GGG-W-6608 providing the highest quality. The sockets have a 1/2in Drive and are suitable for both industrial and automotive applications. Each socket is individually branded and size marked for quick identification.This Teng Impact Socket has the following specification: Size: 32mmLength: 78mmPTDTEN920632N