I have got 4 adjustable torque screwdrivers for sale. They are all at least 3rd hand (I got them from Ebay) and they are all
badly scratched and generally well used. None are in calibration (unless by luck) and I wouldn't want to fly on a aeroplane that was built using one. However I believe they all work. In short they are no good to NASA but to the humble bike mechanic they
'Should'be fine. As always
caveat emptor.
They are adjustable in the range of 5 to 50 lbf.in (pounds force inches) that equivalent to 0.56NM to 5.6NM
I believe they are all manufactured by Torqueleader Price £10 each inc. P&P first come first served with one reserved for lewisnoble.