Westward Socket Extension 5MR47 The Westward 5MR47 is a 5-inch extension bar made to fit drive sockets that are ½ inch in diameter. To withstand rust and wear, it is coated with chrome and constructed from sturdy alloy steel. For hand turning, the knurled portion in the center offers a secure grip. When additional reach is required for mechanical, automotive, or maintenance jobs, this equipment is frequently utilized. Size / 1/4 in Overall Length / 5 inches