276°
Posted 20 hours ago

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

£9.9£99Clearance
ZTS2023's avatar
Shared by
ZTS2023
Joined in 2023
82
63

About this deal

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.

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 So, what caused the torque loss? According to physics, it’s impossible. So were Newton, Einstein, Galileo, and all the other great physicists, wrong?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. When you just measure the length of the wrench and the extension, the equation becomes much easier to comprehend. You just need to know the actual length of the wrench and the extension. That’s it. That’s the apparently obscure part, I suppose. Desired Torque? Well, you know that—it’s the torque you want to be ultimately applied to the fastener. 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.

Our little equation: Torque Setting = (Wrench Length × Desired Torque) ÷ (Wrench Length + Extension Length) 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. 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.

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. 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. 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.

Asda Great Deal

Free UK shipping. 15 day free returns.
Community Updates
*So you can easily identify outgoing links on our site, we've marked them with an "*" symbol. Links on our site are monetised, but this never affects which deals get posted. Find more info in our FAQs and About Us page.
New Comment