1. A torque wrench measures torque as a proxy for bolt tension. 2. The most basic form of torque wrench consists of two beams. 3. A pneumatic torque wrench has very little vibration, and excellent repeatability and accuracy. 4. A torque wrench is used where the tightness of screws and bolts is crucial. 5. The hydraulic torque wrench was invented by George A . Sturdevant in Houston, Texas. 6. Green was chief engineer for a torque wrench manufacturer. 7. The lifetime warranty does not include precision hand tools, such as calipers and torque wrenches , 8. Hydraulic torque wrenches apply a predetermined, controlled amount of torque to a properly lubricated fastener. 9. Sturtevant patented the torque wrench in 1938 and became the first individual to sell torque wrenches. 10. The operation requires specialist torque wrench calibration equipment with an accuracy of ? % or better.
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