The Bahco 8120-1/2 Swivel Head Ratchet has a 1/2in Drive and 72 teeth that provide a 5 action angle. Its head swivels 270, allowing it to reach difficult areas. In addition, the direction switch on the head is accessible from almost any angle. The ratchet is made from high-performance steel and has a micro matt finish. It has a quick-release function that allows easy socket change. Conforms to hardness and torque requirements, according to ISO 3315:2011.