1 00:00:00,599 --> 00:00:03,439 so what happens if I accidentally drop a 2 00:00:03,439 --> 00:00:06,759 quick drop 3 00:00:08,960 --> 00:00:13,400 Rock so there is this theory that if I 4 00:00:13,400 --> 00:00:15,600 get 5 00:00:15,600 --> 00:00:18,480 unlucky a micro crack might form inside 6 00:00:18,480 --> 00:00:21,119 the Carabiner that would be invisible to 7 00:00:21,119 --> 00:00:22,240 outside 8 00:00:22,240 --> 00:00:24,880 inspection and with repeat at 9 00:00:24,880 --> 00:00:28,320 loading this micro crack could grow and 10 00:00:28,320 --> 00:00:31,080 eventually 11 00:00:31,080 --> 00:00:33,559 however there has been many debates 12 00:00:33,559 --> 00:00:35,800 whether this micr fracture theory is 13 00:00:35,800 --> 00:00:39,040 correct or not so to settle the matter I 14 00:00:39,040 --> 00:00:41,120 visited three different companies for 15 00:00:41,120 --> 00:00:43,399 this video I got access to a very 16 00:00:43,399 --> 00:00:46,039 Advanced testing equipment even looked 17 00:00:46,039 --> 00:00:48,559 inside the carabiners and had a 18 00:00:48,559 --> 00:00:50,920 conversation with metallics engineer 19 00:00:50,920 --> 00:00:53,719 from mammut that's the lowest one we had 20 00:00:53,719 --> 00:00:56,640 so far so maybe it will get interesting 21 00:00:56,640 --> 00:01:00,920 maybe it will get interesting he said