MM 4-point sockets (4K)

MM 4K series 4‑point sockets are specialty sockets designed for applications where a 4‑point / square-style engagement is required (application dependent; verify per listing). These sockets are commonly used in industrial maintenance, automotive service, and equipment repair where standard 6‑point or 12‑point sockets won’t fit the fastener or drive feature (application dependent). Because “4‑point” sockets are typically application-specific, selecting the correct socket depends on matching the drive size, socket size, and configuration shown on each product page (per listing).