Drive Adjustable Torque Wrenches Spanner is a high quality torque wrench developed and produced by our company. Complete product series, high precision, beautiful appearance, easy to use, good reliability, head replaceable. Widely used in aerospace, aviation,shipbuilding,automobile, railway, construction machinery, electric power and other industries, is the necessary tool to ensure and improve product quality, accuracy up to ±4%. MD-680 (MD-680 and above adopt split design, fully consider the needs of customers in packaging, transportation, storage.)