The following day he found the courage to try the shorter blade, and with that he managed to cut through the skin. Only when he had made a large hole in his arm did he realise that it was going to be impossible to use any of the little tools on his knife to cut through the bones. After another 24 hours of pain and despair the idea and the strength came to him in a flash on the sixth day. With a final burst of energy he broke both bones in his arm and freed himself.
The ordeal was not over, though. He was still a long way from help. He had to carefully strap up his right arm and then find a way of lowering himself down a 20m drop in the canyon with a rope and only his left arm, and then walk the 10 km back to his car. Despite his ingenuity* and all his efforts he would have bled to death if it hadn't been for a very happy coincidence: the moment he got out of the canyon into the open desert the rescue helicopter just happened to be flying overhead.