When it comes to torque wrenches, there are plenty of misconceptions. After all, the average person does not spend a considerable amount of time thinking about torque wrenches. However, some myths have become especially pervasive.
Digital Torque Wrenches are not as Accurate as old Torque Wrenches
The truth is some digital torque wrenches are even more accurate than their aged counterparts. In the end, the conditions of the environment ultimately dictate which type of wrench is the most accurate. Though mechanical wrenches function with ball detent mechanisms or beams that flex in accordance with torque, these tools are not guaranteed to be more or less accurate than the digital variety.
Mechanical wrenches typically read pounds of force in single pound increments. Digital torque wrenches can reach upwards of a tenth of a pound of force for pinpoint accuracy. Furthermore, many mechanical wrenches rely on a dial indicator or beam scale to gauge torque. Though this approach usually provides an accurate reading, it can also spur user error when the observer looks at the gauge from an angle and ends up with an improper reading.
A Torque Wrench That is Dropped Will no Longer Prove Reliable
There is a good chance every torque wrench will be dropped at one point or another. However, you and your team should go to great lengths to treat this expensive piece of equipment with care. There is no reason to panic if your wrench is dropped once. However, there is the potential for multiple drops to impact the wrench calibration. You might not see obvious signs of damage on the exterior yet the wrench might have calibration issues.
Torque Wrenches Cannot Measure in Increments of 5 Pounds or Less
If a bolt has already been tightened, it is best to increase torque by a couple pounds or less. Ideally, the torque will be adjust by five pounds or fewer. Be sure to loosen the bolt prior to adjusting the torque. Loosening the bolt is important for bolts previously tightened to ensure a state of relaxation. However, to say wrenches cannot adjusted in increments less than five pounds is inaccurate. The only risk you run with small increments is there is a slightly higher potential for a false reading.
Adapters Impact Readings
This statement is partially true, regardless of whether a standard or deep socket is in use. However, anything that pushes the torque wrench head or pivot point away from the optimal vertical position with the fastener to be torqued will impact the reading. If a horizontal extension is required for your torque wrench, contact the manufacturer to determine if there is any way to adjust for the leverage change.
Florida Precision Tool
The torque wrench experts at Florida Precision Tool offer a wide variety of torque wrenches. Our team is highly skilled in the use and torque wrench training in Florida. Contact us today at 727-373-4410 to find out more about our precision tool services.