At 07:35 PM 9/26/2011, John Rodgers wrote... >If Gary Bawden's plus or minus 20% rule applies - the would be low >-98.4 >ft-lbs and high - 147.6 ft-lbs and that figure is a whole bunch! I'm not sure Gary's remembering accurately. Current Proto torque wrenches are "Calibrated to +/-3% in clockwise direction and +/-6% in counter clockwise direction," so much better that 20%. The technology in "clicker" type wrenches hasn't changed. If you don't get them calibrated occasionally, or don't reset them to the minimum setting after every use, then the calibration could be off, but probably not by 20%. |
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