TheBenchmade 9070SBK-1 Claymor is a military automatic knife whose "explosive" and reliable design is inspired by one of the most famous directional mines. The Benchmade 9070SBK-1 Claymor knife uses CPM-D2 premium steel with impressive retention, lightweight Grivory laminate liners and an armored locking mechanism that sets a new standard for durability. The result is a lightweight and reliable tactical knife for those looking for uncompromising solutions. Powdered CPM-D2 steel The blade is made of costly CPM- D2 steel hardened to 60-62 HRC. CPM-D2 is a powdered variant of air-hardened D2 steel, but with much higher retention and a modified carbide microstructure, which makes the blade eminently wear-resistant, impressively long in sharpness and at the same time quite easy to sharpen. However, it is worth remembering the proper maintenance of the knife, so that the knife will serve reliably for many years. When choosing a knife made of such steel, it is worth getting a diamond sharpener, since sharpening with a standard ceramic whetstone can be very labor-intensive and inefficient. Armored head The slim drop-point blade, 86 mm in length, is coated with a black cerakote coating, which protects against corrosion, minor scratches and emphasizes the tactical nature of the knife. The blade has a strong stock and a flat grind, which guarantees smooth cutting and easy penetration. The head at its widest point is as much as 2.9 mm thick. Such parameters guarantee the functionality and durability of the knife and make it suitable for demanding tasks. Combo blade A perfectly sharp cutting edge, a strong hilt and a flat grind ensure aggressive cutting, and good penetration. The back of the blade is serrated, which makes it easier to cut hard (e.g. plastic and bone) and fibrous materials (ropes, belts, tapes). Combo blades (a combination of a smooth and serrated cutting edge) are mostly chosen by soldiers, rescue workers and those looking for tools with a wider range of applications.