This 3/8” mechanical torque wrench can be driven in both directions and has 45 teeth. The torque has three different ranges: 5~25N.m, 10~60N.m, and 20~120N.m. Don’t worry that excessive torque may cause damage. Damage wrenches and fasteners. When the preset torque value is reached, you will hear a "click" sound. At this time, you can stop your action.