Quote:
Originally Posted by icey756
Also I dont have a torque wrench. I plan on getting one next week but the think is the one im looking at is 20-150 foot pounds. So the lowest i could get in inch pounds is 240. I really dont have the money 2 of them and besides that, the lowest one they have only goes down to 20 inch pounds
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When selecting a torque wrench for a given job you are best choosing one where the desired torque falls within the middle 50-60% of the wrench's scale for the best accuracy. Leave a 20 to 25% margin on the top and bottom as most types of wrenches are not terribly accurate at the end of their scope. A beam type is easily one of the most consistent and accurate and calibration is a one second affair. Whatever type you get make sure to always zero it out (or set to whatever the lowest setting is) before storing. Periodic testing and calibration is recommended for anything other than a beam type wrench (You can use a beam type to test the others yourself.
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You can extend the range of a torque wrench with a multiplier. This is an extension of sorts for the torque wrench. The basics of it are if you add an extension which doubles the length of the wrench it doubles the wrench's capacity (so you then double the reading on the scale.... for 20ft lbs you'd only aim for 10ft lbs).