When you put an extension on a torque wrench, the torque applied to the fastener increases. Use the Norbar Torque Wrench Extension Calculator app to find what value you should set into the wrench to achieve.
Updated on
31 Jul 2025
Tools
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Ratings and reviews
phone_androidPhone
3,3
93 reviews
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shawn weitz
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13 July 2021
By far the best app I found for torquing I used this for years. The only thing is I just learned about reverse torque conversion. So that would be nice to have as well.