20-06-2020, 03:28 PM
First decide what range you need and buy the size of wrench that corresponds. Most of the 'sensitive' torques on an A7 - big ends, head studs, centre main bearing - fall around the 20 - 30 lbft mark. Don't buy a 150lbft wrench and try to use it on 1/4" bolts.
I have a Norbar 0 - 50Nm which I bought new and which has proved quite consistent.
Most professional workshops where torque wrenches are used also have a wall-mounted torque wrench checking gauge which is used regularly. This is because the wrenches themselves tend to wander in accuracy. Cheap ones very considerably so.
I have a Norbar 0 - 50Nm which I bought new and which has proved quite consistent.
Most professional workshops where torque wrenches are used also have a wall-mounted torque wrench checking gauge which is used regularly. This is because the wrenches themselves tend to wander in accuracy. Cheap ones very considerably so.