Why are some vde torque screwdrivers so expensive ?

[LewisM]

I work in aviation and most issues with fasteners are caused by overtightening but I feel that's more because spanners and ratchets are used and it's very easy to overtighten when you have that extra leverage

 

[pc1966]

Some car chargers require surprisingly low torque - considerably less than I'd deem reasonable for most terminals. I suspect this is because the connector is soldered directly to the board and I find that stranded conductors need to be bedded in quite well and re-tightened several times.

Never dealt with EV chargers but I know that PCB terminals are fragile. Many only have one pin through the board per terminal, worse still are surface-mount only ones!

Having said that I got a CPN MCB once and tightened it to the manufacturer's torque and it split! One more brand in my "do not touch" box...

 

[Lister1987]

I have the Armeg, purely for the range of torque settings.