A Hultafors robust chisel knife with V-ground chisel function. 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. Great for carpentry & woodwork. The blade is made from 3 mm carbon steel that has been hardened to 58-60 HRC. Back of chisel handle can be hit with hammer. Hultafors Stamkniv - Model STK.,High carbon steel is tougher & harder than stainless steels, making it ideal & desired for applications where durability is required, & where frequent regrinding is needed. Carbon steels are sharper & more durable, & have razor-sharp edges. Carbon steel in general is easy to re-sharpen as well when the need arises.,   Since carbon steel has superior cutting qualities due to it's hardness & toughness, it's resistance to corrosion caused by moisture is low as a result. Therefore, it is important to try & keep your carbon steel blades away from moist or damp environments as much as possible. It is also a good idea to occasionally wipe the blade with a light oil, such as mineral oil from time to time. It is also a good idea to wipe the blade dry after each use. Hultafors Chisel Knife - Carbon Steel ~ STK