A tool in which a socket has been welded to a long rod (about 8 to 10 inches). At the other end of the rod, a crossbar has been welded. Thus it is formed in the shape of the letter "T". In some instances it speeds up the removal and installation of bolts.
T-HANDLE SOCKET
Meaning of T-HANDLE SOCKET in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012