How To Calibrate A Torque Wrench

A torque wrench is a precision tool that applies a specific amount of torque to a fastener or bolt. It is an essential tool used in a variety of industries, from automotive and aviation to construction and manufacturing. The accuracy of the torque wrench is critical to ensure that the proper amount of force is applied to the fastener.

Without proper calibration, torque wrenches can provide inaccurate readings, leading to costly mistakes, increased downtime, and potential safety hazards. In this blog post, we will discuss the importance of calibrating a torque wrench, the process involved, and the benefits of using a professional torque wrench calibration service. If you’re wondering, how to calibrate a torque wrench, read on to find out.

Addressing Misconceptions

There are some common misconceptions regarding the calibration of torque wrenches, including the belief that they do not require calibration or that it is a difficult and time-consuming process. It is important to understand that calibration is crucial for torque wrenches to function properly and provide accurate readings. Luckily, calibrating a torque wrench is a straightforward process that can be done quickly and efficiently with the right tools and expertise.

Impacts of Not Having a Calibrated Torque Wrench

The consequences of not having a calibrated torque wrench can be significant. An inaccurate torque reading can lead to over or under-tightening of fasteners, which can result in a range of problems. In the automotive industry, over-tightening bolts can damage critical components, while under-tightening can result in the loosening of bolts, leading to a loss of function or potential safety hazards. In the aviation industry, incorrect torque readings can cause severe structural damage, leading to costly repairs and potential loss of life. The manufacturing industry can experience similar issues, leading to decreased productivity and increased downtime.

Steps Involved In The Torque Wrench Calibration Process

Calibrating a torque wrench involves several steps that ensure the tool is functioning correctly and providing accurate readings. The first step is to inspect the tool visually for any damage or wear. Next, the torque wrench is tested to ensure it meets the manufacturer’s specifications. The calibration process involves using a torque calibration tester, a device that applies a known amount of force to the torque wrench.

The tester measures the force applied by the torque wrench, and any discrepancies between the applied force and the torque wrench’s reading are noted. The torque wrench is then adjusted until the readings match the tester’s applied force. This process is repeated several times to ensure accuracy, and a calibration certificate is issued, indicating that the torque wrench is calibrated to industry standards.

Benefits Of A Calibrated Torque Wrench

Calibrating a torque wrench provides a range of benefits, including ensuring that equipment operates efficiently and safely, while reducing the risk of costly repairs or downtime. Calibrated torque wrenches also provide increased efficiency in the manufacturing process, leading to increased productivity and higher-quality products. Additionally, calibration ensures compliance with industry standards and regulations, demonstrating a commitment to safety and quality assurance.

Professional Torque Wrench Calibration Services

Calibrating a torque wrench requires specialised equipment and expertise. While it may seem like a cost-saving to calibrate your own torque wrenches, it is not recommended. Professional calibration services ensure that torque wrenches are calibrated correctly, giving you peace of mind knowing that the tool is operating correctly, as well as providing the documentation to prove you’ve carried out proper testing. This also demonstrates to your customers that safety and quality are a top priority. 

GNW is a highly experienced provider of industrial calibration services, offering torque wrench calibration services to a range of industries. With highly qualified technicians, advanced equipment, and a commitment to quality, GNW provides the highest level of torque wrench calibration services.


Torque wrenches are critical tools used in a wide variety of industries. Their accuracy is essential to ensure safe and efficient operation. The consequences of not having a calibrated torque wrench can be severe, leading to costly mistakes, downtime, and safety hazards. While calibrating a torque wrench is a relatively straightforward process, it requires specialised equipment and expertise – best provided by a professional calibration service.

Investing in a professional torque wrench calibration service, such as GNW, can provide significant benefits to individuals and companies – making sure that torque wrenches operate correctly and that the necessary documentation and testing are carried out. With a commitment to quality and safety, GNW provides the highest level of calibration services to a range of industries.

Get In Touch Now!

Whether you are an individual user, or a larger company that relies on torque wrenches, investing in GNW’s professional calibration service is the best way to ensure their continued reliability and accuracy. 

Visit GNW today to learn more about our range of industrial calibration services and get in touch to discuss your calibration needs.