Now Available Roselli knives with UHC-blade Following years of research and experiments, H.Roselli developed his own way of processing ultra high carbon containing bladesteel (1,5 - 2,0 %). The outstanding edge holding properties of UHC-steel results from the high amount of hard carbides produced in the forging process. Whatever the job, -carving, cutting or skinning-, UHC-steel holds its edge longer. In fact the edge retains its sharpness twice as long as conventional carbon steel. The handles of UHC-knives are made of birch, kiln dried and stained, to ensure a good grip. A strongly constructed leather stealth is a feature of each Roselli knife. The GrandfatherÔs Knife is available with a leather or a curly birch sheath. It gives great control over the blade, and is a favorite with many. All Roselli Knives include a tastefully simple, solid leather sheath. Roselli Knives are practical, reliable and durable tools. You will feel the grasp of professional in your hand. The carbides cut exactly at the touching point. The nano tructure provides the best known hardness. Handle is made from heat-resistant flame birch. Nanogenic Ultra High Carbon steel uses latest technology, developed by master smith Heimo Roselli. It is the hardest known steel: C 1.8 / 67 HRC./2400N mm2 where traditional forged carbon steel is C 0.75 / 59-62 HRC.