FUTEK’s Socket Extension Reaction Torque Sensor offers a unique solution for Torque auditing applications. The TAT420 is available in Stainless Steel Construction in a 1/2” Square Drive weighing only 14.0 oz. The standard TAT420 Torque Sensor can be modified or customized to meet your requirements and most models are in our inventory making them available for quick delivery. The TAT420 Series is manufactured in USA and uses metal foil strain gauge technology.