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Hello to all, I was pulling out the pulley from my S7 motor which you guys have given a very good advice and it was fixed. Initially the pulley got stuck as I remember I placed a thread locker years ago as it keeps on unscrewing and I got fed up. This time I could not unscrew it and stip the head of the grub screw. I could not drill it as I believe its a hardened (unbrako??) screw. I managed to get the pulley out by using a puller but the broken grub screw remained. I tied heating it with a small butane torch to melt away the thread locker but nothing happened.

Raphael golezGo to drill serviceDrill serviceபோ க்கு துரப்பணம் சேவைதுரப்பணம் சேவை