Lang 522 19 Piece Magnetic Socket Inserts SAE and Metric

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• Includes nineteen pieces: SAE (3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16 and 7/8) and Metric (10, 11, 12, 13, 14, 15, 16, 17, 18 and 19mm)??ísets combined
• Magnetic insert firmly holds the fastener in the socket for easy installation/removal.
• Prevents fasteners from dropping into restricted areas where they can be difficult to locate and/or retrieve
• Magnetic insert can be left in or removed for use in other sockets