Just out of curiosity, what's the formula for figuring the actual torque setting when using an extension? I have seen some formulas plastered on the web, but they aren't what I would consider factual although they are useable to a certain extent.

I recently had to torque drive shaft bolts and had to use the extension to reach in. While the job is finished, I thought it might be fun to see who really knows their physics.

Also if 1 pound is applied to a three foot lever is it the same as if 3 pounds were applied to a 1 foot lever?

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