A powerful and durable ground knife suitable for tough tasks such as prizing, breaking and hacking. 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 Japanese knife steel, 0,12 inch carbon steel that has been hardened to 58–60 HRC. The cutting edge has been sharpened with a double edge angle and 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. Because the heavy duty knife is a more powerful tool, it has a larger holster than other knives in the craftsmen range. Gk-ph is supplied with a cardboard case instead of a holster.