The Ko-Ken 3/8" Square Drive Locking Spinner Handle is designed to provide control and versatility for fastening applications. The tool features a 230mm overall length, 110mm handle, and 120mm shaft for comfortable handling and extended reach. Its locking function helps maintain a secure connection during use. The spinner handle allows technicians to work with fasteners while maintaining control of the tool. Its design makes it suitable for a variety of fastening tasks, particularly when additional reach is needed.