Damasteel Nidhogg™ DS93XTM Martensitic Damascus patterned knife steel has a detailed and symmetrical pattern containing arcs, stars and diamonds running from side to side to with an intense look. Beautiful on kitchen knives, medium sized knives and jewelries. Price per 10cm. For longer pieces, add the desired amount to the cart. According to Norse Mythology Nidhogg is a ferocious dragon who gnaws at the roots of Yggdrasil, the tree which supports the nine worlds of Norse mythology. His body is covered in bright scales, and horns erupt from his head.