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Posted 20 hours ago

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

£9.9£99Clearance
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About this deal

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. 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?

Now, while trying out the same extension but this time without the chair as the brace, it to no surprise, again lost some torque, averaging out at 33.5 ft-lb representing a 3.74% loss from the baseline. 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. 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 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.

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At this point, no dedicated brace was used even though there was a little sag (spoiler: that’s a key reason behind the torque loss). Now that things were to be stretched further, to minimize the substantial amount of sag, a chair was used as a brace to get as accurate results as possible. 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. 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. 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.

Desired Torque? Well, you know that—it’s the torque you want to be ultimately applied to the fastener.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. Even though many people don’t do this and are aware of the science behind it, many don’t. Some people are just comfortable holding a wrench at the very bottom of it, and they do the same for a torque wrench as well. So, what caused the torque loss? According to physics, it’s impossible. So were Newton, Einstein, Galileo, and all the other great physicists, wrong?

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