MM Universal sockets (US)

MM US series swivel sockets (also called universal joint sockets or flex sockets) are designed to reach fasteners at an angle when straight-line access is limited (application dependent; verify per listing). By building articulation into the socket, swivel/universal sockets are commonly used in automotive repair and industrial maintenance to work around obstructions, reach recessed fasteners, and reduce the need to stack multiple extensions and universal joints (application dependent). They’re especially useful in tight engine bays, machinery frames, and service areas where clearance is limited and tool positioning is awkward (application dependent).