In this article, Warren and Brown answer this common question

If you have inherited an old Warren and Brown torque wrench, such as one of its deflecting beam models, you might wonder if it needs calibrating.
Warren and Brown says these tools are renowned for their durability and accuracy, often passed down through generations.
But does age affect their precision? It is a common question.
Warren and Brown says its torque wrenches from the 70s and 80s were among the best for tasks like tightening head bolts, harmonic balancer bolts, and flywheel pulley bolts.
Known for their reliability, it says these tools have stood the test of time.
However, even the best tools require some attention to maintain their accuracy.
Generally, Warren and Brown deflecting beam torque wrenches shouldn’t need calibration if they’ve been well-maintained.
Proper storage, such as keeping them in their original boxes and without tension, helps preserve their accuracy.
However, if they’ve been roughly handled, dropped, or stored improperly, calibration might be necessary.

DIY Calibration Check
Warren and Brown states you can perform a basic calibration check at home to ensure your torque wrench is still accurate.
It advises you use a modern ratchet-type torque wrench for comparison on a torque test rig – securing a bolt in a vice can serve for this purpose.
After securing a large bolt in a vice, test both wrenches at various torque settings (for example, three to five different settings) to determine if calibration is required.

Professional Calibration
For those who prefer a professional touch, Warren and Brown says you should consider taking your torque wrench to a specialist.
In Melbourne, you can visit Warren and Brown in Maidstone for expert torque wrench calibration and repairs.
In Sydney, Warren and Brown suggest you head to Torque Calibration Services, and in Tasmania, it encourages you to visit Calspec for reliable calibration services.
For personal use, especially if you trust your tool’s history, Warren and Brown says a quick comparison test can often provide the confidence you need.
However, for critical applications or absolute peace of mind, it says professional calibration is highly recommended.
Warren and Brown says that by ensuring proper storage and regular maintenance, your Warren and Brown torque wrench will continue to deliver precision and reliability for years to come.
Warren and Brown is also offering a 10 percent discount off your next order, using the code ‘AAAA’ upon checkout.

For more information, visit www.warrenandbrown.com.au