The Pin Trick: How to open a Master 175 padlock in less than 5 seconds!! 

This padlock is quite commonly used, but few know that it has a vulnerability. Did you know about it?
Opening a combination Master padlock 178/175 using only a hairpin.
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Chapters:
0:00 Introduction
0:24 Prepare the hairpin
1:26 Open Lock
3:30 End