Craftsman's knife heavy duty gk hultafors 380020, a powerful and durable ground knife suitable for coarse work such as prizing, breaking and hacking. The unique method for attaching the sheath around a button on work clothes means it does not loosen, but is easy to remove. The knife blade is made from 3mm japanese knife carbon steel that has been hardened to 58 60 hrc with the cutting edge sharpened with a double edge angle and a final honing on a leather strop. The handle and supplied holster are made of extra durable pp plastic. This heavy duty knife is more robust and therefore has a larger sheath compared to other craftsman's knives. Blade length 94mm.overall length 222mm.supplied loose. Hultafors 380020 craftsman's knife heavy duty gk