The accuracy of a torque wrench will be stated as Full Scale (FS) or Indicated Value (IV). A mechanical torque wrench will have one or two of these measurements, but a digital one might have all of them. Occasionally, you’ll find a torque wrench that’s measured in inch-pounds or kilograms per centimeter. Torque is usually measured in foot-pounds on the imperial scale or Newton-meters on the metric scale. Measure the size of the fasteners you’re using for your project before purchasing a torque wrench. A ½-inch drive is common for automotive use, but manufacturers also make ¼-inch, ¾-inch, and ⅜-inch sizes. However, they don’t stop the user from overtightening-the user has to stop themselves once they hear the beeping or see the flashing.ĭrive size refers to how big the piece that fits over the fastener is. Digital torque wrenches can be accurate up to four decimal places and can sometimes store old readings. Additionally, when you reach the desired torque, the tool beeps or flashes to alert you. It has an LCD screen that tells you what the torque is. Digital: This type of torque wrench is fairly new to the market.Instead of the wrench alerting you when it’s reached the desired torque, you’ll have to read the dial for your torque measurement. Dial: Dial wrenches look like click wrenches with an analog dial on them.Cam-over: This type of torque wrench has a built-in mechanism that releases pressure as soon as the torque is reached, preventing you from overtightening.Break-over torque wrenches make it difficult to accidentally overtighten the fastener, but it is possible. Break-over: This is similar to a click wrench, but it has a hinged section, typically near the socket head, that “breaks” when the torque is reached.Instead of stopping at the first click, some people tighten the fastener too much by waiting until the wrench clicks a second time. It’s easy to use and durable, but some people use it incorrectly. It makes an audible click sound when the required torque has been reached. Click: This is the most common type of torque wrench.There are five main types of torque wrenches. This buying guide explores each of these factors to help you make an informed purchasing decision. In addition to the type, you’ll also want to consider a torque wrench’s drive size, unit of measurement, accuracy, and ease of use before deciding which one to add to your tool kit. This caused them to apply too much force. The most common complaint from dissatisfied customers was related to the product’s click feature, with multiple users saying that they weren’t able to hear or feel the “click” that signified that the desired torque had been reached. ✘ Some reviews claimed that the wrench broke shortly after purchase What Customers Are SayingĬustomers praised the flexibility of this wrench’s head, which fit a range of nuts and bolts. ✘ Has a smaller handle that some users said was difficult to operate ✔ Composed of heat-treated chrome vanadium ✔ Comes in other sizes with different ranges ✔ Has a large range of 15–250 foot-pounds This torque wrench set also delivers accurate results within 4% every use, and it comes with a calibration certificate with a trackable serial number to prove it. This ½-inch click type torque wrench features a large torque range between 25 and 250 feet, though other sizes and ranges are also available for purchase. Customers who weren’t satisfied with this torque wrench complained that it wasn’t accurate within 4% at the lower end of the range. Multiple customers who received an inaccurate or otherwise faulty product were contacted by the company to get a replacement. ✘ Some customers said that the return period was too short to accurately test the product What Customers Are SayingĬustomers praised this wrench’s durable composition and the company’s excellent customer service. ✘ Some reviewers received a scratched product ✔ Includes an operations manual with a torque conversion chart ✔ Comes with a reversible ratchet head that can drive in both directions ✔ Includes a dual-range scale that’s easy to read in low lighting It’s also available in a wide range of drive sizes and ranges, giving you options when it comes to specializing the wrench to your projects. It features an easy-to-read scale and a reversible ratchet head that rotates in both counterclockwise and clockwise directions. This wrench comes in a bright red case that protects the tool from damage in your toolbox or tool chest.
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