The Hultafors OK1/OK4 Outdoor Knives have a scandi grind andare made from Japanese knife steel 3.0mm carbon steel that has beenhardened to 58–60 HRC. It has a rust protective, electrophoreticdeposition coating to withstand corrosion. The ground spine of the bladeis designed for starting a fire with a fire starter and there is scaleengraved on blade for optimised outdoor usage. It is fitted witha larger handle made from super-durable PP plastic. Supplied in aholster with a hard wearing, textile belt loop for belts up to 80mmwide. The holster can be attached around a button on your work clothesso that it does not come loose whilst still being easy to remove. OK4: Overall Length: 209mm.