The 6-inch 3/8-inch Drive Impact Lock Extension from Irwin is a robust tool designed for use with impact wrenches and ratchets. This extension features a durable construction that withstands high torque applications, making it perfect for automotive and industrial tasks. The lock mechanism ensures a secure fit with sockets, preventing slippage during use. With a length of 6 inches, it provides added reach for accessing tight spaces, enhancing your efficiency on the job. This extension is compatible with standard 3/8-inch drive sockets, making it a versatile addition to any tool collection.