When I got my wiha torque screwdriver, it came with +\- in sizes 1 and 2…. The 2 was just a little too large for some RCBO terminals and stripped out some plastic… so I used the 1
That turned out wrong, as even set to the correct torque, I managed to rip off the point. Had to go back to the size 2.
Wiha sent replacement 1’s under warranty…. And the regular pz2 from a non torque set does however fit without damaging the plastic.
I just wish the hex shank and slot for the bits were a tad larger on the wiha, so that anybodies bits would fit.