The NEW BRITAIN M109 Aircraft Wrench is a high-quality, single 12-point half moon wrench designed for use with SAE measurements. With a size of 9/16 inches, this durable tool is perfect for automotive and aircraft maintenance tasks. Originally made in the USA, this wrench comes as a single piece with no warranty included. The NEW BRITAIN brand is known for producing reliable hand tools, making this wrench a valuable addition to any mechanic’s toolbox.