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%.