How OTF Automatic Knives Work (60 fps 4k). Detailed Explanation. 

Friends, despite the fact that there is a lot of information about automatic knives on RU-vid, I could not find a detailed visualization of the operation of theirFriends, despite the fact that there is a lot of information about automatic knives on RU-vid, I could not find a detailed visualization of the operation of their mechanism anywhere, so I decided to make this video and explain in detail the principle of operation of these knives. mechanism anywhere, so I decided to make this video and explain in detail the principle of operation of these knives.