TheBenchmade 4400SBK Casbah is a lightweight automatic knife, featuring a partially serrated CPM-S30V stainless steel blade, a discreet deployment button and liners made of durable G10 laminate. American tool steel Theknife has a usable 86mm drop-point blade made of American CPM-S30V stainless steel. Crucible Industries' S30V powder steel is hardened to an optimal hardness of 58-60 HRC, so it maintains a high sharpness for a long time, has high mechanical strength, and is also resistant to corrosion. Thanks to its high vanadium carbide content, the steel is distinguished by its high impact and wear resistance, as well as its excellent cutting properties. The blade is finished by satin finishing (polishing). When choosing a hard-steel knife, get a diamond sharpener, as sharpening with a standard ceramic whetstone can be very labor-intensive and inefficient. Utility head The utility drop point profile blade is coated with a layer of black Teflon, which protects the blade from minor scratches. The knife has a gently marked blade belly and a strong hilt. A head with this profile is an excellent choice for those looking for a knife for everyday use. On the back of the ridge transverse cutters have been made, allowing a stable finger rest during planing or precision cutting. The thickness of the blade at its widest point is 2.9 mm, which is a compromise between durability and functionality of the knife in everyday work. To increase the functionality of the knife, the back of the cutting edge is serrated. The combo blade is particularly useful when cutting hard and fibrous materials such as belts, ropes and webbing. Advantages of the serrated blade: Maintains working sharpness for a long time, cuts harder and fibrous materials more efficiently, including wood, cardboard, plastic, fabrics, cables, ropes, tapes, as well as meat, vegetables and fruits, with greater cutting efficiency, reduces fatigue and does not require putting in a lot of force