The Benchmade 5700SBK Auto Presidio II is an automatic version of the iconic tactical knife, featuring a partially serrated CPM-S30V powder-coated steel blade, aluminum liners , and 2 locks . Premium steel The 94mm long drop-point head is made of CPM-S30V premium steel hardened to 58-60 HRC . The American powder steel is particularly valued for its resistance to corrosion, wear (high impact strength) and long maintenance of working sharpness . When choosing a knife made of such steel, it is worth getting a diamond sharpener, as sharpening with a standard ceramic whetstone can be very labor-intensive and inefficient. The blade is covered with a matte-black coating, which partially protects the blade from scratches and gives a tactical look. Combo blade A perfectly sharp cutting edge , a strong hilt and a concave grind ensure aggressive cutting, and good penetration. The partially serrated blade makes it easy to cut hard (e. g. plastic and bone) and fibrous materials (ropes, belts, webbing) . Combo blades (a combination of a smooth and serrated cutting edge) are favored by soldiers, rescue workers and those looking for tools with a broader spectrum of applications. Spring-assisted The blade can be conveniently and quickly unfolded with one hand using the locking slider on both sides, making the knife ready for use in no time. Auto Axis-lock mechanism, valued for its high mechanical strength, resistance to dirt and ease of use, is responsible for the safety of work. The knife uses an additional lock to prevent accidental unfolding of the blade during handling. Lightweight and durable linings The anodized aluminum facings have a contoured shape that expands at the base of the blade to form a natural hilt , which prevents the hand from slipping on the blade and provides a point of support for the fingers. The beveled frets emphasize the tactical character, and provide a firm grip on the knife both with the bare hand and with a gloved hand. Discreetly carrying the knife in a pocket is made possible by a high-mounted clip with the option of flipping it to the other side.