OK Ive just lost the thread in (another) one of my magura mounts, so I started to helicoil it. Ive done this before before you think, and it worked perfectly. I drilled, I tapped, and then I had/have problems. Ive put the spring on the end of the tool and its gone over the little spring loaded bump which is supposed to force it to screw in. The only problem is, that when I go to screw it in, the insert doesn't turn, and the tool screws itself into the insert (which has stayed OUT of the hole) So any ideas anyone? Currently not impressed.... Its the same tools + sizes as I used for the time before so I KNOW its the corrected sizes....