Chestnut broken of the company JBM 72 teeth length 60.9 cm. The 1/2" socket is suitable for heavier applications and can be used in professional tasks that require high torque for tightening or loosening fasteners. All 1/2" drive accessories such as sockets, extensions, adapters, etc. can be used with this size. It has an adjustable head that allows for angle adjustment and access to hard-to-reach work areas.