Have your torque wrench recalibrated at least once per year. This will help your torque wrench stay calibrated for longer.Īll torque wrenches will lose calibration eventually. When storing a click torque wrench, you’ll also want to set the torque to its lowest rating, so that there is only slight pressure on the internal spring. The best torque wrenches often come with a hard shell storage case. If you drop your torque wrench many times or from an especially high height, this can throw off the calibration. When you aren’t using your torque wrench, it is important to store it somewhere safe. If you want to check the torque on a nut, you’ll need to loosen it again and retighten it with your torque wrench. Once the set torque has been reached you will hear a click or a beep, depending on the style of torque wrench you are using. Do not ratchet the torque wrench back and forth or you may get an inaccurate reading. When you use a torque wrench, you should complete the tightening in one fluid motion. Similarly, you should not use a torque wrench to loosen bolts. Do most of the tightening with a standard socket wrench, until the nut is firmly fastened but not fully tightened. Instead, use a standard wrench or tire iron. When you first attach a bolt and begin to tighten it, do not use your torque wrench. Attach Socketįind the appropriately-sized socket for your nut and attach it to your torque wrench. Consult your owner’s manual for details specific to your torque wrench. Click torque wrenches are adjusted by twisting the handle. With a digital torque wrench, torque is set using a digital keypad. Most tire lug nuts require 100.0 lb-ft of torque. To determine the proper torque, consult maintenance manuals for your specific vehicle or check online message boards. Start by setting your wrench to the desired torque level. A torque wrench isn’t difficult to operate correctly, but there are some things you should know and mistakes to avoid. If used improperly, you will get poor results. Torque wrenches are precision calibration tools. A flexible head can be useful for fastening bolts in tight places where there may not be enough room to operate a fixed head torque wrench. Flexible head torque wrenches can pivot up and down. Fixed head torque wrenches are solid beams. The head of a torque wrench can be fixed or flexible. Torque wrenches can have up to 1.0-inch and larger drives, but these are only useful for big vehicles like heavy equipment. 3/8- and 1/2-inch drives are the most common specs for auto applications. Drive Sizeĭrive size refers to the size of bits that can be used with a torque wrench. Most automotive applications require a torque wrench that can apply at least 100.0 lb-ft of torque, so we don’t recommend a torque wrench that falls below this range for your garage. Some fasteners require different levels of torque, so it’s important to determine how much torque you’ll need to apply before selecting the appropriate torque wrench. Torque wrenches can have ranges up to 300.0 lb-ft and higher. The range of a torque wrench refers to the torque force it is able to apply. In addition to wrench type, you’ll want to consider range, drive size, and head type when purchasing a torque wrench. As they are digital, this type of torque wrench requires batteries. These typically have an LED screen that lets you set and display torque rating.
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