Hi,

2 years ago I brought up the wraps on my mcaniques Sperzel Strato.
I just understood it was what was best for my setup (and that's what I keep hearing).
In beginners, perfect ...
After 2 years:

Thread of an evening, then 2 then 3 and now 4 of 6 mcaniques!
This in normal use (no drilling).

In this case, it is either:
- No chance (of a crdible it ... but ...). 4
- The matrial utiliss are of poor quality (steel too "soft").

At least for the "high end" that fills the drawers of the maker ... is shameful.
I was screwed as I can, waiting to replace all a. .. by Schaller ...

To avoid!