Can someone explain why is my tool body rotating like that?

[varjoy]

This is the tool

This is handle with FRONT surface

This is handle orientation,

But for some reason, this happens:

This is other tool, with same handle:

Don’t know what’s the trouble…

[imalex4]

How is the handle welded to the tool?

Also, has the handle’s grip position been changed? If you want a quick solution, you could change the grip position.