Regin confidently makes Sigurd an admirable sword, but when Sigurd sees it, he is disappointed and breaks it over the anvil. On his second attempt, Regin makes him a sword superior to the last, but it also breaks. On his third attempt, Sigurd brings Regin the two halves of Gram, his father's sword, and when he strikes the anvil with Gram, it is cloven in two. Once he tested the strength of the sword, he left the workshop and went to a nearby stream to check its edge. Throwing a piece of wool upstream, he lets it press against Gram, causing it to be sliced through. After testing the blade's sharpness, he uses it to avenge his father, Sigmund, slaying King Lyngvi. Of the many feats done by Gram, by far the most well known and important is the slaying of Fafnir the dragon. This deed is accomplished by Sigurd with a single, mighty thrust to the left shoulder where he drives the sword so deep he gets his arms bloodied up to the shoulder. Eventually Gram is used as a sign of chastity when it is placed between Sigurd and Brynhild on their funeral pyre, after Brynhild arranged Sigurd's death before killing herself in turn. After this the sword is no longer found in the manuscript.