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Tool Talk Discussion Forum

Re: long ratchet extensions

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Author  [Modern View]

12-18-2013 17:41:45

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It doesn't. The torque wrench will still click at the preset value regardless of the cheater.

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12-18-2013 20:44:26

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 Re: long ratchet extensions in reply to JerryBowers, 12-18-2013 17:41:45  
Hello JerryBowers,

The formula is: Weight X Distance = force.

Torque wrench length X torque desired
Torque wrench Length + extension Length
Do the math!


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Stick welding

12-18-2013 22:44:13

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 Re: long ratchet extensions in reply to GUIDO, 12-18-2013 20:44:26  
There's a big difference between using a standard socket on a torque wrench with a cheater on the handle and having an extension where the socket goes on. I wouldn't call the latter a cheater. You're multiplying the force of the gauge by extending the socket center. I would call a cheater something to make it easier to pull to get the proper torque, whether it's a piece of pipe or a guy who works out and has strong arms. The torque wrench would have no way to know what was pulling it. Most torque wrenches are sufficient length to reach their capacity without the need for a cheater though.

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12-19-2013 06:54:34

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 Re: long ratchet extensions in reply to Stick welding, 12-18-2013 22:44:13  
Hello Stick welding,

Its simple math really. Extension on the socket ZERO torque value change. Extension on the torque wrench change on torque applied proportional to the length added.


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12-18-2013 19:15:33

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 Re: long ratchet extensions in reply to JerryBowers, 12-18-2013 17:41:45  
As to use of a "cheater", many torque wrenches are calibrated with the force applied at the center of the hand group. Doing otherwise makes them inaccurate.

(Or so states the instructions that come with most torque wrenches I've ever bought.)

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