Knife developed and Adapted to meet the needs of craftsmen, with a blade made from stainless Japanese knife steel. It features a unique function for attaching the holster around a button on your work clothes so that it does not come loose whilst still being easy to remove. The blade is made from 0,1 inch stainless steel that has been hardened to 57–59 HRC. The cutting edge has been sharpened in several stages, with a final honing on a leather strop. Both the handle and holster are made from super-durable PP plastic. The holster can be attached to both a belt and a button on your work clothes. If your belt is thick, cut away the small pin on the cover. Craftsman’s knife rfr-ph is supplied with a cardboard case instead of a holster. Rfr fits in the same holster as hvk.