Sealey Ak5513 Impact Extension Bar Set 4Pc 1/2Sq Drive

Product Information

But here’s the upfront conclusion if you’re a skimmer—the extension does not cause torque loss as long as it’s perfectly perpendicular to the body of the wrench. But achieving the perfect angle is often tougher than it’s thought to be.

At this point, a pattern had been found that as the extension length kept increasing, the torque loss was higher (without the brace). To see if the pattern was valid or not, things were stretched out even further. Next up, two extensions were put together making a combined length of 19-inch, and that averaged out at 33.5 ft-lb, representing a torque loss of 3.83% compared to the baseline.Desired Torque? Well, you know that—it’s the torque you want to be ultimately applied to the fastener. According to physics, if you keep the extension perfectly perpendicular to the body of the wrench, there should be no torque loss—and that’s actually the case, as seen on many tests. When similar tests were carried out, ensuring the conditions were met, there was no real torque loss. The Halfords Advanced 1/2" Drive Impact Extension Bar Set includes 50 and 150mm lengths. The extension bars have been manufactured from tough chrome molybdenum steel for added strength and durability.

Halfords Advanced hand tools come with a Lifetime Guarantee. Should a Halfords Advanced hand tool fail while being used for the purpose and in the manner for which it was designed, it will be inspected and replaced. Instead of talking in terms of theory, I’d like to summarize the results of an extensive test on this matter, which will answer the question in a more solid manner. You have a wrench with a length of 24 inches and you have to put an extension of 4 inches on it to reach where you intend to. The recommended torque setting for the fastener is 180 lbs. What torque setting do you set the wrench on for a smooth sail? So to settle things, yes, you can use an extension with a torque wrench without losing on torque and keeping the purpose intact as long as you can keep it perpendicular (or as close as possible) to the body of the wrench. Adjusting for The Extension Remember we said that it was the sag, or the angle created due to the sag, to be more specific, which was a key reason behind the torque loss? To further confirm that, a wobble extension was used under the same setting.So, what caused the torque loss? According to physics, it’s impossible. So were Newton, Einstein, Galileo, and all the other great physicists, wrong? Just to give you another heads up before wrapping it up, you need to ensure that you put your hand in the right place on the wrench—at the center of the handle. Neither at the upper end nor the bottom end.

While doing the same test with a 64-inch extension, the torque loss was 9.77% (without the brace) and 6.23% with the brace. At this point, the sag was so substantial that even after using a brace, a significant torque loss was seen. Halfords Advanced modular trays are designed to help you build your own ideal tool kit. Choose the tools that you need for the job and then choose the storage that you need. Our Halfords Advanced modular tray storage case will hold up to three trays for a portable tool kit, or build the complete tool storage solution using Halfords tool chests and cabinets. Features & Benefits: In simpler terms, an extension that’ll increase the effective length of the wrench will need to be adjusted for. An increased effective length will provide more leverage than default and thus will apply a different amount of pressure than intended, killing the sole purpose of a torque wrench. The first extension was a 10-inch ½-inch drive impact extension and it averaged out at 33.7 ft-lb, which is a 3.16% torque loss compared to the baseline.

It was time for a 38-inch extension and it averaged out at 35.1 ft-lb, which actually is a 0.86% increase in torque from the baseline. Finally, testing out with an 88-inch extension, the results came out as 9.29% torque loss without the brace and 5.72% loss with the brace. The numbers were not exactly the ones that were expected because the torque loss was rather a little less than the 64-inch extension, but the pattern was somewhat upheld, we could say. When you just measure the length of the wrench and the extension, the equation becomes much easier to comprehend.