Wusthof Gourmet 10&rdquo; Bone Splitter Knife 4690/26 Precision-forged from a single piece of high carbon stainless steel Black polyoxymethylene (POM) handle Triple riveted handle for precise control Precision Edge Technology (PEtec) produces a blade that is 20% sharper with twice the edge retention Tempered to 56 degrees Rockwell