Sonic Tools 1/2" Drive Torque WrenchThis torque wrench is a great way to start your torque wrench collection. It is accurate within 3%, staying within industry standards, has a visible scale in nm and ft lbs, and uses a lock system that holds the torque setting in place. Keep in mind that while this ratchets in both directions, it only provides a torque reading in one direction. This torque wrench should be calibrated once every 12 months or every 5,000 clicks. Sending your Sonic torque