Ko-ken 3771Z 3/8 Sq. Dr. Universal Joint 3/8 Square Length 42.5mm Z-series

Pin-less universal joint in 3/8" square drive. The joints use ball mechanisms to provide a fluid motion/rotation. They are connected by mutually engaged hexahedrons, this innovative connection disperses the load across the whole outer circumference of the tool. Allows 30 degrees of rotation.