• ¼" Drive Lock-a-Socket
• New Locking Strip Allows Locking Posts to Lock Sockets & Lock the Locking Posts in Place on the Rail
• Magnetic Rail adheres to ferrous metal surfaces
• Metric Size Labels: 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm
• SAE Size Labels: 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8"