E.306A200S 1/2 in Square Drive Electronic Torque Wrench

E.306A200S 1/2 in Square Drive Electronic Torque Wrench. Torque wrenches are tools used to prevent over-tightening when fastening locking nuts and bolts and are an important hand tool to have in your tool kit. These precision tools allow fasteners to be tightened to the correct tension thus avoiding damage from over-tightening or joints coming apart from under tightening. They are used for accurate torque settings which is important for safety, assembly and performance of equipment. Torque wrenches need to be calibrated regularly so that they are giving accurate readings.